AT HOME CORP
S-3, 2000-01-04
COMPUTER PROGRAMMING, DATA PROCESSING, ETC.
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<PAGE>

    As filed with the Securities and Exchange Commission on January 3, 2000
                                                     Registration No. 333-
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                                ---------------
                                   FORM S-3
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933

                                ---------------
                              AT HOME CORPORATION
          (Exact name of the Registrant as specified in its charter)
              Delaware                           77-0408542
  (State or other jurisdiction of     (I.R.S. employer identification
   incorporation or organization)                   no.)
                              450 Broadway Street
                        Redwood City, California 94063
                                (650) 569-5000
(Address and telephone number of the Registrant's principal executive offices)

                                ---------------

                              Kenneth A. Goldman
                            Chief Financial Officer
                              At Home Corporation
                              450 Broadway Street
                        Redwood City, California 94063
                                (650) 569-5000
  (Name, address and telephone number of the Registrant's agent for service)

                                ---------------
                                  Copies to:
                           Gordon K. Davidson, Esq.
                            Jeffrey R. Vetter, Esq.
                             Craig A. Menden, Esq.
                              Fenwick & West LLP
                             Two Palo Alto Square
                          Palo Alto, California 94306
                                (650) 494-0600

                                ---------------

  Approximate date of commencement of proposed sale to the public: From time
to time after this registration statement becomes effective.
  If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the
following box. [_]
  If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, check the following box. [X]
  If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following
box and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [_]
  If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]
  If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. [_]
                        CALCULATION OF REGISTRATION FEE

<TABLE>
- -----------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------
<CAPTION>
   Title of Each Class of              Proposed Maximum Proposed Maximum
           Shares         Amount to be  Offering Price     Aggregate        Amount of
      to be Registered     Registered      Per Unit      Offering Price  Registration Fee
- -----------------------------------------------------------------------------------------
<S>                       <C>          <C>              <C>              <C>
Series A common stock,
 $0.01 par
 value per share ......    10,673,549     $42.50 (1)      $453,625,833       $119,757
- -----------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------
</TABLE>
(1) Estimated solely for the purpose of calculating the amount of the
    registration fee in accordance with Rule 457(c) under the Securities Act
    of 1933, as amended (the "Securities Act"), based upon the average of the
    high and low prices of the Registrant's Series A common stock as reported
    by the Nasdaq National Market on December 31, 1999.
                                ---------------
  The Registrant hereby amends this registration statement on such date or
dates as may be necessary to delay its effective date until the Registrant
files a further amendment which specifically states that this registration
statement shall thereafter become effective in accordance with Section 8(a) of
the Securities Act of 1933 or until the registration statement shall become
effective on such date as the Securities and Exchange Commission, acting
pursuant to Section 8(a), may determine.

- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+The information in this prospectus is not complete and may be changed. the    +
+selling stockholders may not sell these securities until the registration     +
+statement filed with the securities and exchange commission is effective.     +
+this prospectus is not an offer to sell these securities and it is not        +
+soliciting an offer to buy these securities in any state where the offer or   +
+sale is not permitted.                                                        +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

                 (Subject to completion dated January  , 2000)

PROSPECTUS

                              [AT HOME CORP. LOGO]

                              At Home Corporation

                   10,673,549 Shares of Series A Common Stock

                                  -----------

  Excite@Home's Series A common stock trades on the Nasdaq National Market.

  Last reported sale price on December 31, 1999: $42 7/8 per share.

  Trading Symbol: ATHM

                                  The Offering

  Under this prospectus, the selling stockholders named on page 18 of this
prospectus may offer and sell shares of our Series A common stock that they
acquired upon our acquisition of Hartford House, Ltd.

                                  -----------

  Investing in our Series A common stock involves a high degree of risk. Please
carefully consider the "Risk Factors" beginning on page 2 of this prospectus.

  Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved these securities or passed upon the
adequacy or accuracy of this prospectus. Any representation to the contrary is
a criminal offense.

                 The date of this prospectus is January  , 2000
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<S>                                                                          <C>
PROSPECTUS SUMMARY..........................................................   1
RISK FACTORS................................................................   2
USE OF PROCEEDS.............................................................  18
DIVIDEND POLICY.............................................................  18
SELLING STOCKHOLDERS........................................................  18
PLAN OF DISTRIBUTION........................................................  19
LEGAL MATTERS...............................................................  21
EXPERTS.....................................................................  21
FORWARD-LOOKING STATEMENTS..................................................  21
WHERE YOU CAN FIND MORE INFORMATION.........................................  21
</TABLE>
<PAGE>

                               PROSPECTUS SUMMARY

   This summary highlights information contained elsewhere in this prospectus.
This summary is not complete and does not contain all the information you
should consider before buying shares in this offering. You should read the
entire prospectus carefully. Unless the context otherwise requires, the terms
we, our, us, the company and Excite@Home refer to At Home Corporation, a
Delaware corporation.

                                  Excite@Home

   At Home Corporation, or "Excite@Home" is a global media company that
provides consumers with high speed, high bandwidth Internet connectivity and
content and interactive services on multiple bandwidth platforms. Our @Home
service provides broadband Internet access from consumers' homes over the cable
television infrastructure and offers end-to-end managed connectivity services
for businesses over both cable and digital telecommunications lines. Our media
and marketing services include the Excite Network, a leading consumer Internet
portal and MatchLogic, a targeted advertising platform. The Excite Network
offers search, content, community, communications services and commerce
functionality to Internet users. Excite's media services focus on comprehensive
navigation, global reach and personalization technology designed to attract and
retain users. MatchLogic, a subsidiary of Excite, is a proprietary advertising
distribution platform, that provides advertisers with targeted and campaign
management designed to improve the effectiveness of their advertising
campaigns.

   Our principal executive offices are located at 450 Broadway Street, Redwood,
California 94063. The primary telephone number for our principal executive
offices is (650) 569-5000. Our web sites are located at http://www.home.net and
www.excite.com. Information contained in our web sites does not constitute a
part of this prospectus. @Home, @Media, @Work and the @ball logo are our
registered trademarks, and @Work Internet is our service mark. This prospectus
also includes trademarks of other companies.

                                  The Offering

   All 10,673,549 shares that may be offered under this prospectus are held by
a former stockholders of Hartford House, Ltd. These shares are being offered on
a continuous basis under Rule 415 of the Securities Act.

<TABLE>
<S>                                           <C>
Series A common stock that may be offered by
 the selling stockholders...................  10,673,549 shares
Series A common stock to be outstanding
 after this offering........................  361,973,359 shares*
Use of proceeds.............................  We will not receive any proceeds.
</TABLE>
- --------
* Based on the number of shares outstanding as of December 21, 1999.

                                       1
<PAGE>

                                  RISK FACTORS

   An investment in our Series A common stock involves a high degree of risk.
You should carefully consider the following risk factors and the other
information in this prospectus before investing in our Series A common stock.
Our business and results of operations could be seriously harmed by any of the
following risks. The trading price of our Series A common stock could decline
due to any of these risks, and you may lose all or part of your investment.

   For organizational purposes only, we have organized these risk factors under
four general topics: (1) risks relating to our business in general, beginning
on page 2; (2) risks relating to our broadband services, beginning on page 10;
(3) risks relating to our relationship with our cable partners, beginning on
page 14; and (4) risks relating to our narrowband services, beginning on page
16.

Risks Related to Excite@Home's Business

 We may fail to integrate our business and technologies with the business and
 technologies of Excite, Bluemountain.com and the other companies we have
 recently acquired or may acquire

   We have completed several acquisitions recently, including our recent
acquisitions of Excite, Inc. in May 1999, iMALL, Inc. in October 1999 and
Bluemountain.com in December 1999. We intend to pursue additional acquisitions
in the future. If we fail to integrate these businesses, our quarterly and
annual results may be adversely affected. Integrating acquired organizations
and products and services could be expensive, time-consuming and a strain on
our resources. Risks we could face with respect to acquisitions include:

  .  the difficulty of integrating acquired technology or content and rights
     into our services;

  .  the difficulty of assimilating the personnel of the acquired companies;

  .  the difficulty of coordinating and integrating geographically-dispersed
     operations;

  .  our ability to retain customers of an acquired company;

  .  the potential disruption of our ongoing business and distraction of
     management;

  .  the maintenance of brand recognition of acquired businesses;

  .  the failure to successfully develop acquired in-process technology,
     resulting in the impairment of amounts currently capitalized as
     intangible assets;

  .  unanticipated expenses related to technology integration;

  .  the maintenance of uniform standards, corporate cultures, controls,
     procedures and policies;

  .  the impairment of relationships with employees and customers as a result
     of any integration of new management personnel; and

  .  the potential unknown liabilities associated with acquired businesses.

   Our inability to address any of these risks successfully could harm our
business.

   In particular, a current challenge is to integrate the technology platform
of the @Home network broadband services with Excite's Internet services and the
advertising services of Excite's subsidiary, MatchLogic. Currently, the Excite
narrowband services are operated from Excite's network operations centers.
Integration of the Excite and MatchLogic services to the @Home network
broadband platform poses a number of technical challenges, including
difficulties associated with providing regularly updated and personalized
content over Excite@Home's broadband services and the difficulties associated
with applying the advertising services and targeting technologies from Excite's
MatchLogic subsidiary with the Excite@Home broadband services. This is
particularly challenging because it is more difficult to provide regularly
updated and personalized information

                                       2
<PAGE>

from distributed regional data centers, which we rely upon to deliver our
broadband services, than it is to deliver services from a central data center,
as Excite and MatchLogic currently do, in delivering their narrowband services.

   With respect to any future acquisitions, we may be unable to identify future
acquisition targets and we may be unable to complete future acquisitions on
reasonable terms. Even if we complete an acquisition, we may have difficulty in
integrating it with our current organization, technology and product and
services offerings, and any acquired features, functions, products or services
may not achieve market acceptance.

 Recently-acquired businesses may not be successful

   We have recently acquired two companies in the early stage of development
and with unproven business models.

   iMALL. Prior to August 1998, substantially all of iMALL's revenues were
attributable to its seminar business. This business was discontinued in August
1998. iMALL has yet to achieve any significant revenue from its current
business of providing turnkey electronic commerce services to online merchants
or its other shopping-oriented web sites. A market for iMALL's services may not
develop, and iMALL's services may not become widely accepted.

   Bluemountain.com. The acquisition of Bluemountain.com also involves a number
of risks. For example, the Bluemountain.com electronic greeting card service
currently does not sell advertising on its web sites. Bluemountain.com users
may not accept a service that displays advertising. Bluemountain.com users may
not continue to use the Bluemountain.com service for other reasons. For
instance, competitive electronic greeting card sites have increased in
popularity. Also, the popularity of electronic greeting card services could
decline generally. Additionally, advertisers may not choose to advertise on the
Bluemountain.com service if users do not accept advertising or purchase goods
or services on Bluemountain.com in sufficient quantities.

 We have incurred and expect to continue to incur substantial losses

   At Home Corporation was incorporated in March 1995, commenced operations in
August 1995, and has incurred net losses in each fiscal period since its
inception. As of September 30, 1999, we had an accumulated deficit of $961.8
million. Excite, Inc., which we acquired in May 1999, has never been profitable
and Bluemountain.com, which we acquired in December 1999, has never realized
any significant revenues. In addition, we currently intend to increase capital
expenditures and operating expenses in order to expand our network and to
market and provide our broadband services to potential subscribers as well as
to market our narrowband services. As a result of the acquisitions of Excite
and iMALL and the proposed acquisition of Bluemountain.com, we anticipate that
we will incur substantial non-cash charges including those relating to the
amortization of goodwill and other intangible assets in future periods.
Therefore, we anticipate that we will incur net losses for the foreseeable
future.

 Our quarterly operating results may fluctuate because of a number of factors

   Our quarterly operating results may fluctuate significantly in the future as
a result of a variety of factors, many of which are outside of our control.
These factors include:

  .  the level of usage of the Internet in general and portal web sites in
     particular;

  .  subscriber growth rates and prices charged by our cable partners;

  .  demand for Internet advertising;

  .  the addition or loss of advertisers;

  .  the level of user traffic on our websites used for our narrowband
     services;

                                       3
<PAGE>

  .  the mix of types of advertising we sell, such as the mix of targeted
     advertising as compared to general rotation advertising;

  .  the amount and timing of capital expenditures and other costs relating
     to the expansion of our operations;

  .  the introduction of new products or services by us or our competitors;

  .  pricing changes for Internet-based advertising;

  .  the timing of marketing expenditures to promote our brands;

  .  costs incurred with respect to acquisitions; and

  .  general economic conditions.

   Our expense levels are based in part on expectations of future revenue and,
to a large extent, are fixed. We may be unable to adjust spending quickly
enough to compensate for any unexpected revenue shortfall.

   Our Internet advertising revenue is subject to seasonal fluctuations.
Historically, advertisers spend less in the first and third calendar quarters,
and user traffic for our narrowband services has historically been lower
during the summer and during year-end vacation and holiday periods.

   Due to all of the foregoing factors and the other risks described in this
section, you should not rely on quarter-to-quarter comparisons of our results
of operations as an indication of future performance, particularly in light of
the number of acquisitions we have completed. It is possible that in some
future periods our results of operations may be below the expectations of
public market analysts and investors. In this event, the price of our Series A
common stock may fall.

 We have not yet determined the terms of the "tracking stock" that we plan to
 issue for our media business, nor the corporate governance structure for our
 media business

   On November 22, 1999, we announced that our board of directors had
authorized us to investigate the issuance of a "tracking stock" for our media
business. Our plan to issue the tracking stock has not been finalized, and
therefore this transaction is uncertain. In addition, the issuance of a
tracking stock is subject to stockholder approval, including by our principal
cable partner stockholders. We have not yet determined the terms that would
govern this tracking stock, including the valuation of the tracking stock
relative to our Series A common stock and the voting privileges of the
tracking stock. Also, we have not yet determined the composition of the board
of directors of our media business, what corporate governance provisions will
be adopted with respect to the media business, or whether and how we will
modify the corporate governance provisions that apply to our existing
business.

 If we do not develop new and enhanced features, products and services for our
 narrowband and broadband services, we may not be able to attract and retain a
 sufficient number of users

   Because of the competitiveness of our market, we believe it is important to
introduce additional or enhanced features, products and services in the future
in order to differentiate our services and retain our current users and
attract new users. If we introduce a feature, product or service that is not
favorably received by our current users, they may not continue using our
services as frequently and they may choose a competing service.

   We must also continually enhance our products and services to incorporate
rapidly changing Internet technologies. We could incur substantial development
costs if we need to modify our products, services or infrastructure to adapt
to changes in Internet technologies. Our business could be harmed if we incur
significant costs to adapt to these changes. If we cannot adapt to these
changes, users may discontinue using our services.

                                       4
<PAGE>

   We may also experience difficulties that could delay or prevent us from
introducing new features, products or services. Furthermore, these features,
products or services may contain errors that are discovered after the feature,
product or services are introduced. We may need to modify the design of them
significantly to correct these errors. In addition, we must consult with and
involve our principal cable partners in the development and design of new
features, products or services for our broadband services. Therefore, the
process of introducing new broadband features, products and services is time
consuming and if our principal cable partners object to a new feature, product
or service, we could be prohibited from offering it in particular areas. Our
business could be adversely affected if we experience difficulties in
introducing new products and services or if users do not accept these new
products or services.

 We depend on the sale of advertisements on our services, and if online
 advertising does not become accepted, our business would be harmed

   We expect to derive a substantial amount of our revenues from the sale of
advertising on our services for the foreseeable future. No standards have been
widely accepted to measure the effectiveness of online advertising. If
standards do not develop, existing advertisers may not continue their current
levels of online advertising. Furthermore, advertisers that have traditionally
relied upon other advertising media may be reluctant to advertise online.
Advertisers that already have invested substantial resources in other
advertising methods may be reluctant to adopt a new strategy. Our business
would be harmed if the market for online advertising fails to develop or
develops more slowly than expected.

   Different pricing models are used to sell online advertising. It is
difficult to predict which, if any, will emerge as the industry standard. This
makes it difficult to project future advertising rates and revenues. For
example, advertising rates based on the number of "click throughs," or user
requests for additional information made by clicking on the advertisement,
instead of rates based solely on the number of impressions, or times an
advertisement is displayed, could adversely affect our revenues because
impression-based advertising comprises a substantial majority of our current
advertising revenues. Our advertising revenues could be harmed if we are unable
to adapt to new forms of online advertising. Moreover, "filter" software
programs that limit or prevent advertising from being delivered to a web user's
computer are available. Widespread adoption of this software could harm the
commercial viability of online advertising.

 We must develop and maintain the awareness of our brands to attract consumers
 and advertisers

   Maintaining and strengthening our brands is critical to achieving widespread
acceptance of our services by consumers and advertisers, particularly in light
of the competitive nature of our markets. Promoting and positioning our brands
will depend largely on the success of our marketing efforts and our ability to
provide high quality services. In order to promote our brands, we plan to
increase our marketing expenses from prior periods. We may find it necessary to
increase our marketing budget or otherwise increase our financial commitment to
creating and maintaining brand loyalty among users. If we fail to promote and
maintain our brands or incur excessive expenses in an attempt to promote and
maintain our brands, our business could be harmed.

 We could face liability related to the privacy of personal information about
 our users

   Our narrowband services use "cookies" to deliver targeted advertising, help
compile demographic information about users and limit the frequency with which
an advertisement is shown to the user. Cookies are bits of information keyed to
a specific drive and passed to a web site server through the user's browser
software. Cookies are placed on the user's hard drive, often without the user's
knowledge or consent. We could face liability relating to the collection and
use of this information, as well as other misuses such as unauthorized
marketing. The Federal Trade Commission and some states have been investigating
Internet companies regarding their use of personal information. In addition,
the United States federal and various state governments have proposed new laws
restricting the collection and use of information regarding Internet users.

                                       5
<PAGE>

We could incur additional expenses if new regulations regarding the use of
personal information are introduced or if they chose to investigate our privacy
practices.

 Privacy concerns could make it more difficult for us to deliver targeted
 advertising

   Due to privacy concerns, some Internet commentators, consumer advocates and
governmental officials have suggested that the use of cookies be limited or
eliminated. In addition, certain currently available web browsers allow a user
to delete cookies or prevent cookies from being stored on the user's hard
drive. Any reduction or limitation in the use of cookies could limit the
effectiveness of our ad targeting, which could harm our business.

 The sponsorship advertising we sell subjects us to financial and other risks

   We derive a substantial portion of our revenues from sponsorship
arrangements. These are advertising relationships under which third parties
receive sponsored services and placements on our services in addition to
traditional banner advertisements across our services. These arrangements
expose us to potential financial risks, including the risk that we fail to
deliver required minimum levels of user impressions and that third-party
sponsors do not renew the agreements at the end of their term. These
arrangements also require us to integrate sponsors' content with our services,
which can require the dedication of resources and programming and design
efforts to accomplish. We may not be able to attract additional sponsors or
renew existing sponsorship arrangements when they expire.

   In addition, we have granted exclusivity provisions to some of our sponsors,
and may in the future grant additional exclusivity provisions. These
exclusivity provisions may have the effect of preventing us from accepting
advertising or sponsorship arrangements from certain advertisers during the
term of the agreements. Our inability to enter into further sponsorship or
advertising arrangements as a result of any exclusivity arrangements could harm
our business.

 We may face potential liability from our electronic commerce-related
 advertising arrangements

   Some of our advertising relationships provide that we may receive payments
based on the amount of goods or services purchased by consumers clicking from
our services to a seller's web site. These arrangements may expose us to legal
risks and uncertainties, including potential liabilities to consumers of these
products and services. Although we carry general liability insurance, our
insurance may not cover potential claims of this type or may not be adequate to
indemnify us for all liability that may be imposed.

   Some of the liabilities that may result from these arrangements include:

  .  potential liabilities for illegal activities that may be conducted by
     the sellers;

  .  product liability or other tort claims relating to goods or services
     sold through third-party e-commerce sites;

  .  claims for consumer fraud and false or deceptive advertising or sales
     practices;

  .  breach of contract claims relating to purchases; and

  .  claims that items sold through these sites infringe third-party
     intellectual property rights.

   Even to the extent that these claims do not result in material liability,
investigating and defending these claims could harm our business.

 Our equity investments in other companies may not yield any returns

   We have made equity investments in many Internet companies, including joint
ventures in other countries. In most instances, these investments are in the
form of illiquid securities of private companies. These

                                       6
<PAGE>

companies typically are in an early stage of development and may be expected to
incur substantial losses. Our investments in these companies may not yield any
return. Furthermore, if these companies are not successful, we could incur
charges related to write-downs or write-offs of assets. We also record and
continue to record a share of the net losses in some of these companies, up to
our cost basis, if they are our affiliates. We and our strategic investors
intend to continue to make significant additional investments in the future.
Losses or charges resulting from these investments could harm our operating
results.

 We must maintain the security of our networks

   We have in the past experienced security breaches in our networks. While we
have taken steps to prevent these breaches, and to prevent users from sharing
files via the @Home service and to protect against bulk unsolicited e-mail,
public concerns about security, privacy and reliability of our networks, or
actual problems with the security, privacy or reliability of our broadband
network, may inhibit the acceptance of our services.

   The need to securely transmit confidential information over the Internet has
been a significant barrier to electronic commerce and communications over the
Internet. Any well-publicized compromise of security could deter more people
from using the Internet or our services or from using them to conduct
transactions that involve transmitting confidential information, such as
purchases of goods or services. Because many of our advertisers seek to
encourage people to use the Internet to purchase goods or services, our
business could be harmed if this were to occur. We may also incur significant
costs to protect against the threat of security breaches or to alleviate
problems caused by these breaches.

 Our limited experience with international operations may prevent us from
 growing our business outside the United States

   A key component of our strategy is to expand into international markets and
offer broadband and narrowband services in those markets. We have limited
experience in developing localized versions of our products and services and in
developing relationships with international cable system operators. We may not
be successful in expanding our product and service offerings into foreign
markets. Some of our investments in joint ventures include an option to
purchase the interests of other joint venture shareholders which, if not
exercised by a specified date, gives the other joint venture shareholders the
right to purchase our interest in the joint venture for a nominal price. In
addition to the uncertainty regarding our ability to generate revenues from
foreign operations and expand our international presence, we face specific
risks related to providing broadband and narrowband services in foreign
jurisdictions, including:

  .  regulatory requirements, including the regulation of Internet access;

  .  legal uncertainty regarding liability for information retrieved and
     replicated in foreign jurisdictions;

  .  potential inability to use European customer information due to new
     European governmental regulations; and

  .  lack of a developed cable infrastructure in many international markets.

 We may be liable for our links to third-party web sites

   We could be exposed to liability with respect to the third-party web sites
that may be accessible through our services. These claims may allege, among
other things, that by linking to web sites operated by third parties, we may be
liable for copyright or trademark infringement or other unauthorized actions by
third parties through these web sites. Other claims may be based on errors or
false or misleading information provided by our services. Our business could be
harmed due to the cost of investigating and defending these claims, even to the
extent these types of claims do not result in liability.

                                       7
<PAGE>

 Protection of our intellectual property rights is costly and difficult

   We regard our intellectual property, including our patents, copyrights,
trademarks, trade secrets, and similar intellectual property as critical to our
success. We rely upon patents, trademark and copyright law, trade secret
protection and confidentiality or license agreements to protect our proprietary
rights. Effective protection of intellectual property may not be available in
every country in which our products and services are available. We cannot
guarantee that the steps we have taken to protect our proprietary rights will
be adequate.

 We may be subject to intellectual property infringement claims, which are
 costly to defend and could limit our ability to use certain technologies in
 the future

   Many parties are actively developing Internet-related technologies. We
believe that these parties will continue to take steps to protect these
technologies, including seeking patent protection. As a result, we believe that
disputes regarding the ownership of these technologies are likely to arise in
the future. From time to time, parties assert patent infringement claims
against us in the form of letters, lawsuits and other forms of communications.
In addition to patent claims, third parties may assert claims against us
alleging infringement of copyrights, trademark rights, trade secret rights or
other proprietary rights or alleging unfair competition.

   We may incur substantial expenses in defending against third-party
infringement claims regardless of the merit of the claims. In the event that
there is a determination that we have infringed third-party proprietary rights,
we could incur substantial monetary liability and be prevented from using the
rights in the future.

 Our business depends on the continued growth in Internet use

   We operate in a new and rapidly evolving market. Our business may be
adversely affected if usage of the Internet or other online services does not
continue to grow. This growth could be hindered by a number of factors
including: the adequacy of the Internet's infrastructure to meet increased
usage demands; privacy and security concerns; and availability of cost-
effective services. Any of these issues could cause the Internet's performance
or level of usage to decline.

 Future acquisitions could result in dilutive issuances of stock and the need
 for additional financing

   We have typically paid for our acquisitions by issuing shares of our capital
stock. In the future, we may effect other large or small acquisitions by using
stock, and this will dilute our stockholders. We may also use cash to buy
companies or technologies in the future, as we did for a portion of the
purchase price for Bluemountain.com, and we may need to incur additional debt
to pay for these acquisitions. Acquisition financing may not be available on
favorable terms or at all. In addition, we will likely be required to amortize
significant amounts of goodwill and other intangible assets in connection with
future acquisitions, which would materially harm our results of operations.

 We must manage our growth

   Our growth and recent acquisitions have placed a significant strain on our
managerial, operational, and financial resources. For example, we have grown
from 292 employees at June 30, 1997 to over 1,900 employees at September 30,
1999. In addition, we plan to continue to hire additional personnel. To manage
our growth, we must continue to implement and improve our operational and
financial systems and to expand, train and manage our employee base. Any
inability to manage growth effectively could harm our business.

                                       8
<PAGE>

 Government regulation and legal uncertainties relating to the Internet could
 hinder the popularity of the Internet

   New Internet privacy and other laws. There are currently few laws or
regulations that specifically regulate communications or commerce on the
Internet. However, laws and regulations may be adopted in the future that
address issues such as user privacy, pricing, content and the characteristics
and quality of products and services. For example:

  .  The United States federal and various state governments have proposed
     limitations on the collection and use of information regarding Internet
     users. In October 1998, the European Union adopted a directive that may
     result in limitations on our collection and use of information regarding
     Internet users in Europe.

  .  Several telecommunications companies have petitioned the Federal
     Communications Commission to regulate Internet service providers and
     online service providers in a manner similar to long distance telephone
     carriers and to impose access fees on these companies. This could
     increase the cost of transmitting data over the Internet.

  .  A portion of the Telecommunications Act, which has since been ruled
     unconstitutional, sought to prohibit transmitting certain types of
     information and content over the Internet.

Moreover, it may take years to determine the extent to which existing laws
relating to issues such as property ownership, libel and personal privacy are
applicable to the Internet. Any new laws or regulations relating to the
Internet could harm our business.

   Tax laws. The tax treatment of the Internet and electronic commerce is
currently unsettled. A number of proposals have been made at the federal, state
and local level and by certain foreign governments that could impose taxes on
the sale of goods and services and certain other Internet activities. Our
business may be harmed by the passage of laws in the future imposing taxes or
other burdensome regulations on online commerce.

   Other jurisdictions. Because Excite@Home's service will be available in
multiple states and foreign countries such jurisdictions may claim that it is
required to qualify to do business as a foreign corporation in each of these
states and foreign countries. If we fail to qualify as a foreign corporation in
a jurisdiction where we are required to do so, we could be subject to taxes and
penalties.

 We could face liability for defamatory or indecent content provided on our
 services

   Claims could be made against Internet and online service providers under
both United States and foreign law for defamation, negligence, copyright or
trademark infringement, or other theories based on the nature and content of
the materials disseminated through their networks. Several private lawsuits
seeking to impose this liability are currently pending against Internet and
online services providers. Our insurance may not adequately protect it from
these types of claims.

   In addition, legislation has been proposed that imposes liability for or
prohibits the transmission over the Internet of indecent content. The
imposition upon Internet and online service providers of potential liability
for information carried on or disseminated through their systems could require
us to implement measures to reduce its exposure to this liability. This may
require that we expend substantial resources or discontinue service or product
offerings. The increased focus on liability issues as a result of these
lawsuits and legislative proposals could impact the growth of Internet use.
Furthermore, some foreign governments, such as Germany's, have enacted laws and
regulations governing content distributed over the Internet that are more
strict than those currently in place in the United States. One or more of these
factors could significantly harm our business.

                                       9
<PAGE>

 Year 2000 issues could affect the performance of our systems

   If our internal and network information systems do not correctly recognize
and process date information beyond the year 1999, we may not be able to
conduct operations. We may still experience supplier-related Year 2000
problems. To address these Year 2000 issues, we have initiated a comprehensive
program to address Year 2000 readiness in our systems and our suppliers'
systems. Despite our investigation and assurances we have received from third
party suppliers, we may still face unforeseen liabilities with respect to the
Year 2000 issue. Furthermore, delays in the implementation of new information
systems or a failure to fully identify all Year 2000 dependencies in our
existing systems and in the systems of our suppliers could harm our business.
Therefore, we are developing contingency plans for continuing operations in the
event these problems arise. As of the date of this document, we have not
experienced any material Year 2000 problems.

 Our future success depends on our ability to attract, retain and motivate
 highly skilled employees

   Our future success depends on our ability to attract, retain and motivate
highly skilled employees. Competition for employees in the Internet industry is
intense, particularly in the Silicon Valley where we are headquartered.
Additionally, it is often more difficult to attract employees once a company's
stock is publicly traded because the exercise price of equity awards such as
stock options are based on the public market, which is highly volatile. We may
be unable to attract, assimilate or retain other highly qualified employees in
the future. We have from time to time in the past experienced, and we expect to
continue to experience in the future, difficulty in hiring and retaining highly
skilled employees with appropriate qualifications. This risk is compounded by
the fact that we are controlled by our principal cable partners and therefore,
we may not have the same flexibility as a typical Silicon Valley company to
pursue initiatives proposed by management. Moreover, hiring and retention is
made more difficult due to the uncertainty concerning the relationship we will
have with our principal cable partners following the expiration of their
exclusivity obligations in June 2002.

Risks Relating to Excite@Home's Broadband Services

 Our broadband business is unproven, and it may not achieve profitability

   The profit potential of our broadband business model is unproven and our
broadband services may not achieve widespread consumer or commercial
acceptance. We have had difficulty predicting whether the pricing models for
our broadband services will prove to be viable, whether demand for our
broadband services will materialize at the prices our cable partners charge for
our broadband services, or whether current or future pricing levels will be
sustainable. If these pricing levels are not achieved or sustained or if our
broadband services do not achieve or sustain broad market acceptance, our
business will be significantly harmed.

 Growth of our broadband service may be inhibited by factors beyond our control

   Our ability to increase the number of subscribers to our broadband service
to achieve our business plans and generate future revenues will depend on many
factors which are beyond our control. For instance, some of our cable partners
have not achieved the subscriber levels that we had originally anticipated.
Other factors include:

  . the rate at which our current and future cable partners upgrade their
    cable infrastructures for two-way data services;

  . our ability and the ability of our cable partners to coordinate timely
    and effective marketing campaigns with the availability of cable
    infrastructure upgrades;

  . the success of our cable partners in marketing and installing the @Home
    service in their local cable areas;

  . the prices that our cable partners set for the @Home service and for its
    installation;

                                       10
<PAGE>

  . the speed at which our cable partners can complete the installations
    required to initiate service for new subscribers;

  . the commercial availability of self-installable, two-way modems that
    comply with the recently adopted interface standards known as DOCSIS, and
    the success of the roll-out of these products with the @Home service; and

  . the quality of customer and technical support our cable partners provide.

 We need to add subscribers at a rapid rate for our broadband business to
 succeed, but we may not achieve our subscriber growth goals

   Our actual revenues or the rate at which we add new subscribers may differ
from our forecasts. We may not be able to increase our subscriber base enough
to meet our internal forecasts or the forecasts of industry analysts or to a
level that meets the expectations of investors. The rate at which subscribers
have increased in the past does not necessarily indicate the rate at which
subscribers may be expected to grow in the future. In particular, while we
have forecasted that the number of its subscribers could grow to up to 1.1
million by December 31, 1999, we may not achieve this level of subscriber
growth.

 Our broadband subscriber growth is limited by installation and price
 constraints

   Installation of the @Home service requires a customer service
representative of a cable partner to install a cable modem at a customer's
location and therefore can be time consuming. If we are unable to speed the
installation of our service, our subscriber growth could be constrained.
Moreover, the @Home service is currently priced at a premium to many other
online services, and large numbers of subscribers may not be willing to pay a
premium for the service. Recently, companies have begun to offer free Internet
access with the purchase of personal computers and some Internet service
providers have reduced or eliminated Internet access charges in exchange for
placing advertisements on a customer's computer screen. If these promotions
become more widely used, or if Internet access fees decline, consumers may be
less willing to pay a premium for broadband services, or our broadband
services in particular.

 If we cannot maintain the scalability and speed of our @Home broadband
 network, customers will not accept our broadband services

   Due to the limited deployment of our broadband services, the ability of our
broadband network to connect and manage a substantial number of subscribers at
high transmission speeds is unknown. Therefore, we face risks related to our
network's ability to be scaled up to accommodate increased subscriber levels
while maintaining performance. Our network may be unable to achieve or
maintain a high speed of data transmission, especially as the number of our
subscribers increases. Because of our reliance on regional data centers and
the cable infrastructure in particular geographic locations to support our
broadband services, our and our cable partners' infrastructure must also be
able to accommodate increased subscribers in a particular area. If the
existing infrastructure for a geographic area does not accommodate additional
subscribers, network performance for an area could decline especially if a
cable partner was unwilling to upgrade its infrastructure and we could lose
subscribers in that area.

   In recent periods, the performance of the @Home network has experienced
some deterioration in some markets partially as a result of subscriber abuse
of the @Home service. While we are seeking to eliminate this abuse by
enforcing our acceptable-use policy and by limiting users' upstream bandwidth,
our failure to do so may result in slower network performance and reduced
customer demand for our services.

                                      11
<PAGE>

 If new DOCSIS-compliant cable modems are not deployed timely and
 successfully, our subscriber growth could be constrained

   Each of our subscribers currently must obtain a cable modem from a cable
partner to access the @Home service. The North American cable industry has
recently adopted interface standards known as DOCSIS for hardware and software
to support the delivery of data services over the cable infrastructure
utilizing compatible cable modems. Some of our cable partners have chosen to
delay some deployments of the @Home service until the commercial availability
of DOCSIS-compliant cable modems is widespread, among other reasons.
Subscriber growth could be constrained and our business could be significantly
harmed if our cable partners choose to slow the deployment of the @Home
service further. If our cable partners are not able to obtain a sufficient
quantity of DOCSIS-compliant modems, our growth will be limited.

   We also believe that in order to meet our subscriber goals, two-way cable
modems must also become widely available in other channels, such as through
personal computer manufacturers and through retail outlets. Currently, this
widespread availability has not yet occurred. In addition, these modems must
be easy for consumers to install themselves, rather than requiring a customer
service representative to perform the installation. If two-way cable modems do
not become quickly available in outlets other than through cable television
companies, or if they cannot be installed easily by consumers, it would be
difficult for us to attract large numbers of additional subscribers and our
business would be harmed.

 Our broadband business may be impacted by cable unbundling proposals and
 other government regulation

   Currently, our broadband services are not directly subject to regulations
of the Federal Communication Commission or any other federal, state or local
communications regulatory agency. However, changes in the regulatory
environment relating to the Internet, cable television or telecommunications
markets which could require regulatory compliance by us or which could impact
our exclusivity arrangements, ability to provide broadband services
subscribers and revenues include:

  . The FCC or local agencies could require our cable partners to grant
    competitors access to their cable systems. America Online, GTE,
    MindSpring Enterprises, Inc., Consumers Union and other parties have
    requested Congress, the Federal Communications Commission and state and
    local authorities to require cable operators to provide Internet and
    online service providers with unbundled access to their cable systems. If
    we or our cable partners are classified as common carriers, or if
    government authorities require third-party access to cable networks or
    unaffiliated Internet service providers, our competitors may be able to
    provide service over our cable partners' systems. The rates that our
    cable partners charge for this third-party access, or for the @Home
    Services, could also be subject to rate regulation or tariffing
    requirements.

  . Local governmental proceedings. Some local jurisdictions, including
    Portland and Multnomah County, Oregon and Broward County, Florida, have
    imposed third-party access requirements on AT&T and other cable companies
    operating in those communities. The imposition of these requirements has
    been challenged in Federal Courts. In June 1999, a U.S. District Court
    upheld the third-party access requirement imposed on AT&T by Portland and
    Multnomah County. This decision has been appealed to the U.S. Court of
    Appeal for the Ninth Circuit. Numerous other local jurisdictions have
    considered or are considering imposing similar third-party access
    requirements and other municipalities may consider imposing similar
    requirements in the future.

  . Other litigation. In October 1999, GTE filed a lawsuit in a U.S. District
    Court and in November 1999, a class action was filed, each alleging
    violations of the federal antitrust laws. Although it is too early to
    predict the outcome of this litigation, we could be forced to pay
    damages, allow other service providers to utilize our network, otherwise
    alter the way we do business or incur significant costs in defending
    these litigations. Any of these outcomes could harm our business. In
    addition, others could initiate litigation on similar legal theories in
    the future.

                                      12
<PAGE>

  . Federal regulation. Regulatory changes that affect telecommunications
    costs, limit usage of subscriber-related information or increase
    competition from telecommunications companies could affect our pricing or
    ability to market our broadband services successfully. For example,
    reregulation of cable television rates may affect the speed at which our
    cable partners upgrade their cable systems to carry our broadband
    services.

  . Regulation by local franchise authorities. Many of our United States
    cable partners' local cable affiliates have elected to classify the
    provision of the @Home service as an additional cable service under their
    local franchise agreements, and to pay franchise fees under those
    agreements. Local franchise authorities may attempt to subject cable
    systems to higher or different franchise fees, taxes or requirements in
    connection with their distribution of the @Home service. There are
    thousands of franchise authorities, and thus it would be difficult or
    impossible for us or our cable partners to operate without a uniform set
    of franchise requirements.

 We could lose subscribers to, distribution relationships for and revenues
 from our broadband services to our competitors

   The markets for consumer and business broadband services are extremely
competitive, and we expect that competition will intensify in the future. Our
most direct competitors for broadband services include the following:

  . Providers of cable-based Internet services. Time Warner Inc. and Media
    One Group, which AT&T has agreed to acquire, have deployed high-speed
    Internet access services over their local cable networks through their
    own cable-based Internet service, Road Runner. We currently compete with
    Road Runner to establish distribution arrangements with cable system
    operators and we may compete for subscribers in the future if and when
    our cable partners cease to be subject to their exclusivity obligations.
    In addition, we compete with other providers of cable-based Internet
    services, such as ISP Channel, Inc. and High Speed Access Corporation.

  . Telecommunications providers. We compete with national long-distance and
    local exchange carriers that offer high-speed, Internet access services
    such as asymmetric digital subscriber line, known as DSL. Recently, these
    services have been offered in a number of areas and at lower prices than
    in the past. If the advanced services offered by these companies are
    deregulated, this would further enhance the ability of these companies to
    compete against our services.

  . Internet and online service providers. We compete with Internet service
    providers that provide basic Internet access services and with online
    service providers such as America Online and other Internet portals and
    online services that have announced broadband strategies, such as Yahoo!.

   Many of our competitors and potential competitors have substantially
greater financial, technical and marketing resources, larger subscriber bases,
longer operating histories, greater name recognition and more established
relationships with advertisers and content and application providers than we
do. These competitors may be able to undertake more extensive marketing
campaigns, adopt more aggressive pricing policies and devote more resources to
developing Internet services or online content than us. We may not be able to
compete successfully against current or future competitors, and competitive
pressures could significantly harm our broadband subscriber base, our ability
to renew and enter into new distribution agreements and our revenues.

 Our dependence on our network to provide our broadband services exposes us to
 a significant risk of system failure

   Our operations for our broadband services are dependent upon our ability to
support our highly complex network infrastructure and avoid damage from fires,
earthquakes, floods, power losses, telecommunications failures and similar
events. The occurrence of a natural disaster or other unanticipated problem at
our network

                                      13
<PAGE>

operations center or at a number of our regional data centers could cause
interruptions in our broadband services. Additionally, failure of our cable
partners or companies from which we obtain data transport services to provide
the data communications capacity that we require, for example as a result of
natural disaster, or operational disruption, could cause interruptions in the
services our broadband services. Any damage or failure that causes
interruptions in our network operations could harm our business.

Risks Related to Our Relationships With Our Cable Partners

   The success of our business depends on our relationships with our cable
partners, most of which have agreed to provide our broadband services on an
exclusive basis. We have also agreed not to provide a variety of Internet
services in the areas covered by our cable partners. Our agreements with our
cable partners are complex. Some of the risks associated with these
relationships are set forth below. For a summary of some of the key aspects of
these agreements, you should refer to our annual report on Form 10-K/A for the
year ended December 31, 1998.

 We depend on our cable partners to upgrade to the two-way cable infrastructure
 necessary to support the @Home service; the availability and timing of these
 upgrades are uncertain

   Transmission of our broadband services depends on the availability of high-
speed two-way hybrid fiber coaxial cable infrastructure. However, only a
portion of existing cable plant in the United States and in some international
markets has been upgraded to two-way hybrid fiber coaxial cable, and even less
is capable of high-speed two-way transmission. As of September 30, 1999,
approximately 30% of our North American cable partners' cable infrastructure
was capable of delivering the @Home service. Our cable partners have announced
and are implementing major infrastructure investments in order to deploy two-
way hybrid fiber coaxial cable. However, these investments have placed a
significant strain on the financial, managerial, operating and other resources
of our cable partners, most of which are already highly leveraged. Therefore,
these infrastructure investments have been, and we expect will continue to be,
subject to change, delay or cancellation. Furthermore, because of consolidation
in the cable television industry, as well as the sale or transfer of cable
assets among cable television operators, many cable companies have delayed
upgrading particular systems that they plan to sell or transfer. If these
upgrades are not completed in a timely manner, our broadband services may not
be available on a widespread basis and we may not be able to increase our
subscriber base at the rate we anticipate. Although our commercial success
depends on the successful and timely completion of these infrastructure
upgrades, most of our cable partners are under no obligation to upgrade systems
or to introduce, market or promote our broadband services. As has happened in
the past, even if a cable partner upgrades its cable infrastructure, the
upgraded infrastructure may not function properly, and therefore cause a delay
in the availability of our broadband services for particular areas. The failure
of our cable partners to complete these upgrades in a timely and satisfactory
manner, or at all, would prevent us from delivering broadband services and
would significantly harm our business.

 Our cable partners are not generally obligated to carry our broadband
 services, and the exclusivity obligations that prevent them from carrying
 competing services may be terminated

   Most of our cable partners are subject to exclusivity obligations that
prohibit them from obtaining high-speed, greater than 128 kilobits per second,
residential consumer Internet services from any source other than us. However,
most of our cable partners are under no affirmative obligation to carry any of
our broadband services. Also, the exclusivity obligations of our principal
cable partners, AT&T, Comcast Corporation, Cox Communications, Inc. and
Cablevision Systems Corp., expire on June 4, 2002, and may be terminated sooner
under some circumstances, as follows:

  . principal cable partners may terminate all their exclusivity obligations
    upon a change in law that materially impairs some of their rights;

  . Comcast or Cox may terminate all exclusivity obligations of our principal
    cable partners at any time if there is a change of control of TCI that
    results within 12 months in the incumbent TCI directors no

                                       14
<PAGE>

   longer constituting a majority of TCI's board. AT&T, TCI, Comcast and Cox
   have agreed, however, that AT&T's acquisition of TCI did not constitute a
   change of control under the terms of the original agreement;

  . Comcast or Cox may terminate the exclusivity provisions of our principal
    cable partners if AT&T and its affiliates do not meet specified
    subscriber penetration levels for the @Home service. On June 4, 1999, Cox
    had this right, but Cox has agreed to waive it for 1999; and

  . Comcast may terminate its own exclusivity obligations at any time if it
    allows us to repurchase a portion of Comcast's equity interest in
    Excite@Home. Comcast has informed us that it has entered into an
    agreement with Microsoft Corporation under which Microsoft can require
    Comcast to terminate its exclusivity obligations.

   In consideration for Cox's agreement to waive its right to terminate
exclusivity as of June 4, 1999, changes were made to the corporate governance
provisions of our certificate of incorporation and bylaws. These changes
generally require board action to be approved by a majority of our board,
including the board representatives of AT&T and either Cox or Comcast. In
addition, as further consideration for Cox's waiver, AT&T agreed to increase
its subscriber acquisition goals for the twelve months following June 4, 1999
above its current goal for that period.

   On December 6, 1999, AT&T announced that customers of its broadband cable
systems will be able to choose their Internet service providers for high-speed
Internet access upon expiration of our exclusivity agreement with AT&T.
Therefore, AT&T will not extend its current exclusive agreement with us.

   If the exclusivity obligations of our cable partners are terminated, this
could significantly harm our business and cause an immediate drop in our stock
price. We and our cable partners are continuing to explore the relationships we
will have after our exclusivity obligations expire as well as possible
strategic alternatives to our current relationships.

 We depend on our cable partners to promote our services and obtain new
 subscribers

   The rate at which we are able to obtain new subscribers depends not only on
the degree to which our cable partners upgrade their cable systems but also on
the level and effectiveness of the efforts made by our cable partners to
promote our services. Our cable partners have achieved different levels of
subscriber penetration. In Canada, for example, where our cable partners have
high levels of upgraded cable systems, and faced early competition from other
providers of high speed data services, we have relatively high levels of
subscriber penetration that exceed those in the United States. Among our
principal U.S. cable partners, AT&T, Cox and Comcast are actively promoting our
services and are beginning to increase their penetration rates. Cablevision,
however, has deployed our service to only a small number of subscribers and
continues to offer its own online service called Optimum Online in certain of
its cable systems. We cannot predict the rate at which our cable partners will
add new subscribers to our services. If our cable partners do not actively and
effectively promote our services, we will not be able to reach the level of
subscribers necessary to achieve a profitable business model.

 We are controlled by AT&T, Cox and Comcast

   TCI controls approximately 57% of our voting power. AT&T owns TCI and
therefore controls this voting power. Currently, four of our eleven directors
are directors, officers or employees of TCI, AT&T or their affiliates. AT&T
currently owns all 30,800,000 outstanding shares of our Series B common stock,
each of which carries ten votes per share. This Series B common stock ownership
gives AT&T the right to elect five Series B directors, one of which is
designated by Comcast and one of which is designated by Cox. So long as AT&T
owns at least 15,400,000 shares of our Series B common stock and holds a
majority of our voting power, our board may take action only if approved by the
board and by at least 75%, or four of the five, of our

                                       15
<PAGE>

Series B directors. As a result, corporate actions generally require the
approval of AT&T's three Series B directors and one, or in some cases both, of
the directors designated by Comcast and Cox. Therefore, Comcast and Cox, acting
together, may veto any board action.

   We depend on a continuing cooperative relationship with AT&T, Cox, Comcast
and other large stockholders to take action that requires stockholder consent.
It is possible that AT&T's stockholders' objectives will diverge from what
management considers to be our optimum strategy.

   In connection with the proposed issuance of our tracking stock, our
principal cable stockholders may require us to extend the requirement in our
certificate of incorporation that all board actions must be approved by four of
our five Series B directors beyond the time that AT&T no longer holds a
majority of our voting power. Accordingly, we may adopt amendments to our
certificate of incorporation that would enable AT&T, Comcast and Cox to retain
control of our subscription business even if we issue additional stock that
dilutes AT&T's voting control below 50% of our outstanding voting shares.

 Warrants issued to our cable partners may result in additional dilution to our
 stockholders

   We have entered into agreements with Cablevision, Rogers Cablesystems
Limited, Shaw Cablesystems Ltd. and other cable partners under which we issued
warrants to purchase shares of our Series A common stock. Under these
agreements, warrants to purchase 22,423,996 shares of our Series A common stock
at an average price of $.69 per share were exercisable as of September 30,
1999. To the extent that Cablevision, Rogers, Shaw or other cable partners
become eligible to and exercise their warrants, our stockholders would
experience substantial dilution.

   We also may issue additional stock, or warrants to purchase stock, at prices
equal to or less than fair market value in connection with efforts to expand
distribution of the @Home service.

Risks Related to Our Narrowband Services

 Our narrowband services could lose users, advertisers and revenues to
 competitors

   Our narrowband services compete with a number of companies both for users
and advertisers and, therefore, for revenues. We expect this competition will
intensify, particularly because there are few barriers to entry in this market.
These competitors include:

  . Internet portal companies such as Disney's Go Network, Lycos, Netscape's
    Netcenter and Yahoo!;

  . online service providers such as America Online and Microsoft's MSN
    service;

  . large media companies such as CBS, NBC, Time Warner and USA Networks,
    Inc., who have announced initiatives to develop web services or partner
    with web companies; and

  . providers of a wide variety of online information, entertainment and
    community services such as services that are targeted to vertical markets
    or electronic commerce services.

   Many providers of Internet services have been entering into distribution
arrangements, co-branding arrangements, content arrangements and other
strategic partnering arrangements with ISPs, online service providers,
providers of web browsers, operators of high-traffic web sites and other
businesses in an attempt to increase traffic and page views, thereby making
their web sites more attractive to advertisers while also making it more
difficult for consumers to link to services. To the extent that our direct
competitors or other web site operators are able to enter into successful
strategic relationships, these competitors and web sites could experience
increases in traffic and page views, or the traffic and page views on our
narrowband services could remain constant or decline, either of which could
have the effect of making these web sites appear more attractive to advertisers
and therefore could harm our business.

                                       16
<PAGE>

   Many of our existing competitors, as well as a number of potential new
competitors, have longer operating histories in the Internet market, greater
name recognition, larger customer bases and significantly greater financial,
technical and marketing resources than us. These competitors may be able to
undertake more extensive marketing campaigns, adopt more aggressive pricing
policies and make more attractive offers to potential employees, distribution
partners, advertisers and content providers. Further, it is possible that our
competitors could develop search and retrieval services or other online
services that are equal or superior to ours or that achieve greater market
acceptance than our offerings.

   The Internet in general, and our narrowband services specifically, also
must compete with traditional advertising media, such as print, radio and
television, for a share of advertisers' total advertising budgets. To the
extent that the Internet is not perceived as an effective advertising medium,
advertisers may be reluctant to devote a significant portion of their
advertising budgets to Internet advertising.

   If Internet users do not continue to use Internet portal sites, our
business could be harmed

   The success of our Internet portal web sites is also dependent on Internet
users continuing to use "portal" web sites for their information needs.
Internet measurement services have reported that the number of unique users of
Internet portal sites has been decreasing in recent periods. If Internet users
begin to become less dependent on portal sites, and instead go directly to
particular web sites, our traffic levels could decrease, which could make our
sites less attractive to advertisers.

 Our systems may not be able to accommodate increases in the number of users
 of our narrowband services

   Our web sites for the Excite Network are currently hosted and operated on a
computer network infrastructure separate from our broadband services. The
Excite Network must accommodate a high volume of traffic and deliver
frequently-updated information. The web sites for the Excite Network have in
the past, and may in the future, experience slower response times or other
problems for a variety of reasons. We also depend on third party information
providers to provide updated information and content for these services on a
timely basis. The Excite Network could experience disruptions or interruption
in service due to the failure or delay in the transmission or receipt of this
information. In addition, the Excite Network users of these services depend on
Internet service providers, online service providers and other web site
operators for access to the Excite Network. Each of them has experienced
significant outages in the past, and could experience outages, delays and
other difficulties due to system failures unrelated to our systems. These
types of occurrences could cause users to perceive the Excite Network as not
functioning properly and therefore cause them to use other services.

 We depend on several third-party relationships for users, advertisers and
 revenues

   We depend on a number of third party relationships to provide users and
content for the Excite Network, including agreements for links to narrowband
services to be placed on high-traffic web sites and agreements for third
parties to provide content, games and e-mail for narrowband web sites. If
these relationships terminate and we are not able to replace them, we could
lose users or advertisers.

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<PAGE>

                                USE OF PROCEEDS

   We will not receive any proceeds from the sale of the Series A common stock
by the selling stockholders under this prospectus.

                                DIVIDEND POLICY

   We have never paid any cash dividends on our capital stock. We anticipate
that we will continue to retain any earnings for use in the operation of our
business and we do not currently intend to pay dividends.

                              SELLING STOCKHOLDERS

   The following table sets forth information with respect to the selling
stockholders and the shares of our Series A common stock that they may offer
under this prospectus. Except for the relationships described below, the
selling stockholders have not had any other position, office or other material
relationship with us or any of our predecessors or affiliates.

   The share information provided in the table below is based on information
provided to us by the selling stockholders as of January 3, 2000. We calculated
beneficial ownership according to Rule 13d-3 of the Exchange Act as of this
date. Each selling stockholder beneficially owns less than 1% of our
outstanding Series A common stock, except for Fortuna Ventures, L.P., which
beneficially owns approximately 1%, based on 351,299,810 shares of Series A
common stock outstanding as of December 21, 1999. We may update, amend or
supplement this prospectus from time to time to update the disclosure in this
section. The former stockholders of Hartford House received their shares in
connection with our acquisition of Hartford House, Ltd. in December 1999.

   The selling stockholders may from time to time offer and sell any or all of
their shares that are registered under this prospectus. Because the selling
stockholders are not obligated to sell their shares, and because the selling
stockholders may also acquire publicly traded shares of our Series A common
stock, we cannot estimate how many shares of the selling stockholders will
beneficially own after this offering.

<TABLE>
<CAPTION>
                                                       Shares          Shares
                                                 Beneficially Owned   that May
   Name                                          Before the Offering be Offered
   ----                                          ------------------- ----------
   <S>                                           <C>                 <C>
   Fortuna Ventures, L.P.......................       4,756,480       4,756,480
   Stephen Schutz and Susan Schutz, Trustees
    under Trust dated
    December 19, 1985..........................       2,714,195       2,714,195
   Jared Schutz................................       2,520,557       2,520,557
   The Schutz Family Foundation................         440,000         440,000
   Robert Polis, as Trustee of the Robert Na-
    than Polis Revocable Trust dated August 25,
    1993.......................................         142,317         142,317
   Project Concern International...............          20,000          20,000
   U.S. Committee for UNICEF...................          20,000          20,000
   Boulder County United Way...................          20,000          20,000
   UC San Diego Foundation.....................          20,000          20,000
   Sidney Kimmel Cancer Center.................          10,000          10,000
   Harvard University..........................           5,000           5,000
   Princeton University........................           5,000           5,000
                                                     ----------      ----------
     Total.....................................      10,673,549      10,673,549
                                                     ----------      ----------
</TABLE>

                                       18
<PAGE>

   On December 13, 1999, we completed our acquisition of Hartford House, Ltd.,
a Delaware corporation ("Blue Mountain") the operator of the Bluemountain.com
web site, which provides web-based greeting cards. We plan to incorporate the
Blue Mountain content across our complement of content offerings.

   The acquisition was accomplished by merging Blue Mountain with and into At
Home Corporation, with At Home Corporation surviving as the continuing
corporation. The transaction was accounted for as a purchase and the merger is
intended to qualify as a tax free reorganization.

   In the merger, we issued to Blue Mountain stockholders shares of our newly-
created non-voting preferred stock convertible into approximately 10.7 million
shares of our Series A common stock and paid to those stockholders $350 million
in cash. We sold $500 million aggregate principal amount of our convertible
subordinated notes in a private placement to qualified institutional investors,
in part to finance the cash component of the purchase price. We also converted
outstanding Blue Mountain options into options to purchase up to approximately
3 million shares of our Series A common stock. If certain performance goals
related to the Bluemountain.com web site are met, we will be obligated to issue
additional shares of our Series A common stock to former Blue Mountain
stockholders having an aggregate value of approximately up to $270 million and
to issue additional options. We are obligated to file a registration statement
on Form S-3 with the Securities and Exchange Commission to register the shares
of Series A common stock issuable upon conversion of the preferred stock. A
registration statement on Form S-8 has been filed with respect to the converted
options.

   Of the shares to be immediately issued in this acquisition, approximately
50% may not be resold for a period of two years after the closing of the
acquisition. The remaining initially issued shares may only resold at a rate of
500,000 shares of Excite@Home Series A common stock per month. Any shares
issued as part of the earnout provisions of the Merger Agreement will be freely
tradable upon issuance.

   In connection with the acquisition, we also entered into distribution
relationships with Proflowers.com, Inc., an online flower company, Dan's
Chocolates, an online gift company, and Lucidty, Inc., an online electronic
gift certificate company. These three agreements provide for Excite@Home to
receive aggregate revenues of $34 million over the three year terms of the
agreements.

                              PLAN OF DISTRIBUTION

   Who may sell and applicable restrictions. The selling stockholders will be
offering selling all shares offered and sold under this prospectus.
Alternatively, the selling stockholders may from time to time offer the shares
through brokers, dealers or agents that may receive compensation in the form of
discounts, concessions or commissions from the selling stockholders and/or the
purchasers of the shares for whom they may act as agent. In effecting sales,
broker-dealers that are engaged by the selling stockholders may arrange for
other broker-dealers to participate. The selling stockholders and any brokers,
dealers or agents who participate in the distribution of the securities may be
deemed to be underwriters, and any profits on the sale of the securities by
them and any discounts, commissions or concessions received by any broker,
dealer or agent might be deemed to be underwriting discounts and commissions
under the Securities Act. To the extent the selling stockholders may be deemed
to be underwriters, they may be subject to statutory liabilities, including,
but not limited to, Sections 11, 12 and 17 of the Securities Act and Rule 10b-5
under the Exchange Act.

   Manner of sales. The selling stockholders will act independently of us in
making decisions with respect to the timing, manner and size of each sale.
Sales may be made over the Nasdaq National Market or the over-the-counter
market. The shares may be sold at then prevailing market prices, at prices
related to prevailing market prices or at negotiated prices. The selling
stockholders may also resell all or a portion of the shares in open market
transactions in reliance upon Rule 144 under the Securities Act, provided that
the shares meet the criteria and conform to the requirements of this rule. The
selling stockholders may decide not to sell any of the shares offered under
this prospectus, and they may transfer, devise or gift these shares by other
means.

                                       19
<PAGE>

   The shares may be sold according to one or more of the following methods:

  . a block trade in which the broker or dealer so engaged will attempt to
    sell the securities as agent but may position and resell a portion of the
    block as principal to facilitate the transaction;

  . purchases by a broker or dealer as principal and resale by the broker or
    dealer for its account as allowed under this prospectus;

  . ordinary brokerage transactions and transactions in which the broker
    solicits purchasers;

  .  an exchange distribution under the rules of the exchange;

  . face-to-face transactions between sellers and purchasers without a
    broker-dealer; and

  . by writing options.

   Some persons participating in this offering may engage in transactions that
stabilize, maintain or otherwise affect the price of the securities, including
the entry of stabilizing bids or syndicate covering transactions or the
imposition of penalty bids. The selling stockholders and any other person
participating in a distribution will be subject to applicable provisions of the
Exchange Act and the rules and regulations thereunder including Regulation M.
This regulation may limit the timing of purchases and sales of any of the
securities by the selling stockholders and any other person. The anti-
manipulation rules under the Exchange Act may apply to sales of securities in
the market and to the activities of the selling stockholders and their
affiliates. Furthermore, Regulation M of the Exchange Act may restrict the
ability of any person engaged in the distribution of the securities to engage
in market-making activities with respect to the particular securities being
distributed for a period of up to five business days before the distribution.
All of the foregoing may affect the marketability of the securities and the
ability of any person or entity to engage in market-making activities with
respect to the securities.

   Hedging and other transactions with broker-dealers. In connection with
distributions of the securities, the selling stockholders may enter into
hedging transactions with broker-dealers. In connection with these
transactions, broker-dealers may engage in short sales of the registered
securities in the course of hedging the positions they assume with selling
stockholders. The selling stockholders may also sell securities short and
redeliver the securities to close out short positions. The selling stockholders
may also enter into option or other transactions with broker-dealers which
require the delivery to the broker-dealer of the registered securities. The
broker-dealer may then resell or transfer these securities under this
prospectus. A selling stockholder may also loan or pledge the registered
securities to a broker-dealer and the broker-dealer may sell the securities so
loaned or, upon a default, the broker-dealer may effect sales of the pledged
securities under this prospectus.

   Prospectus delivery. Because selling stockholders may be deemed to be
underwriters within the meaning of Section 2(11) of the Securities Act, they
will be subject to the prospectus delivery requirements of the Securities Act.
At any time a particular offer of the securities is made, a revised prospectus
or prospectus supplement, if required, will be distributed which will set
forth:

  . the name of the selling stockholder and of any participating
    underwriters, broker-dealers or agents;

  . the aggregate amount and type of securities being offered;

  . the price at which the securities were sold and other material terms of
    the offering;

  . any discounts, commissions, concessions and other items constituting
    compensation from the selling; stockholders and any discounts,
    commissions or concessions allowed or reallowed or paid to dealers; and

  . that the participating broker-dealers did not conduct any investigation
    to verify the information in this prospectus or incorporated in this
    prospectus by reference.

                                       20
<PAGE>

   The prospectus supplement or a post-effective amendment will be filed with
the Securities and Exchange Commission to reflect the disclosure of additional
information with respect to the distribution of the securities. In addition, if
we receive notice from a selling stockholder that a donee or pledgee intends to
sell more than 500 shares of Series A common stock, a supplement to this
prospectus will be filed.

   Expenses associated with registration. We have agreed to pay the expenses of
registering the shares under the Securities Act, including registration and
filing fees, printing and duplication expenses, administrative expenses and
legal and accounting fees. Each selling stockholder will pay its own brokerage
and legal fees, if any.

   Suspension of this offering. We may suspend the use of this prospectus if we
learn of any event that causes this prospectus to include an untrue statement
of a material fact or omit to state a material fact required to be stated in
the prospectus or necessary to make the statements in the prospectus not
misleading in the light of the circumstances then existing. If this type of
event occurs, a prospectus supplement or post-effective amendment, if required,
will be distributed to each selling stockholder.

                                 LEGAL MATTERS

   The validity of the issuance of the shares of Series A common stock offered
under this prospectus will be passed upon for us by Fenwick & West LLP, Two
Palo Alto Square, Palo Alto, California 94306.

                                    EXPERTS

   Ernst & Young LLP, independent auditors, have audited our consolidated
financial statements in our annual report on Form 10-K/A for the year ended
December 31, 1998, as amended, as set forth in their report, which is
incorporated by reference in this prospectus and elsewhere in the registration
statement. Our consolidated financial statements are incorporated by reference
in reliance on the report of Ernst & Young LLP given on their authority as
experts in accounting and auditing.

   The financial statements of Narrative incorporated in this prospectus by
reference to the audited historical financial statements included as Exhibit
99.01 of our Form 8-K/A filed on February 19, 1999 have been incorporated in
reliance on the report of PricewaterhouseCoopers LLP, independent accountants,
given on their authority as experts in auditing and accounting.

                           FORWARD-LOOKING STATEMENTS

   This prospectus contains forward-looking statements within the meaning of
Section 27A of the Securities Act and Section 21E of the Exchange Act relating
to future events or financial results. These forward-looking statements include
statements indicating that we believe, we expect or we anticipate that events
may occur or trends may continue, and similar statements relating to future
events or financial results. These forward-looking statements are subject to
material risks and uncertainties as indicated under the caption "Risk Factors."
Actual results could vary materially as a result of a number of factors
including those disclosed in "Risk Factors" and elsewhere in this prospectus.

                      WHERE YOU CAN FIND MORE INFORMATION

   The following documents that we have filed with the Securities and Exchange
Commission are incorporated into this prospectus by reference:

  . the registration statement on Form S-3 of which this prospectus is a
    part, and the exhibits filed with this registration statement and
    incorporated into the registration statement by reference

                                       21
<PAGE>

  . our annual report on Form 10-K/A for the fiscal year ended December 31,
    1998, as amended on March 31, 1999 and on April 27, 1999

  . the registration of our Series A common stock on Form 8-A filed on June
    13, 1997

  . all other reports filed under Section 13(a) or 15(d) of the Exchange Act
    since December 31, 1998, including: (1) our quarterly reports on Form 10-
    Q for the fiscal quarters ended March 31, June 30 and September 30, 1998,
    each as amended on February 8, 1999; (2) our quarterly reports on Form
    10-Q for the quarters ended March 31, June 30 and September 30, 1999; (3)
    our current reports on Form 8-K filed with the SEC on January 14, 1999
    (as amended on February 19, 1999), January 21, 1999 (two reports),
    February 19, 1999, April 8, 1999, June 14, 1999 (as amended on August 13,
    1999), August 2, 1999, October 27, 1999, December 6, 1999 and December
    22, 1999.

  . all other information that we file with the Commission under to Sections
    13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of this
    prospectus and before the termination of this offering.

   To the extent that any statement in this prospectus is inconsistent with any
statement that is incorporated by reference, the statement in this prospectus
shall control. The incorporated statement shall not be deemed, except as
modified or superceded, to constitute a part of this prospectus or the
registration statement.

   Because we are subject to the informational requirements of the Exchange
Act, we file reports and other information with the Commission. Reports,
registration statements, proxy and information statements and other information
that we have filed can be inspected and copied at the public reference
facilities maintained by the Commission at Room 1024, 450 Fifth Street, N.W.,
Washington, D.C. 20549. You may obtain copies of this material from the Public
Reference Section of the Commission at 450 Fifth Street, N.W., Washington, D.C.
20549 at rates prescribed by the Commission. The public may obtain information
on the operation of the Public Reference Room by calling the Commission at 1-
800-SEC-0330. The Commission also maintains a World Wide Web site that contains
reports, proxy and information statements and other information that is filed
electronically with the Commission. This web site can be accessed at
http://www.sec.gov.

   We have filed with the Commission a registration statement on Form S-3 under
the Securities Act with respect to the Series A common stock offered under this
prospectus. This prospectus does not contain all of the information in the
registration statement, parts of which we have omitted, as allowed under the
rules and regulations of the Commission. You should refer to the registration
statement for further information with respect to us and our Series A common
stock. Statements contained in this prospectus as to the contents of any
contract or other document are not necessarily complete and, in each instance,
we refer you to the copy of each contract or document filed as an exhibit to
the registration statement. Copies of the registration statement, including
exhibits, may be inspected without charge at the Commission's principal office
in Washington, D.C., and you may obtain copies from this office upon payment of
the fees prescribed by the Commission.

   We will furnish without charge to each person to whom a copy of this
prospectus is delivered, upon written or oral request, a copy of the
information that has been incorporated by reference into this prospectus
(except exhibits, unless they are specifically incorporated by reference into
this prospectus). You should direct any requests for copies to At Home
Corporation, 425 Broadway Street, Redwood City, California 94063, Attention:
David G. Pine, Vice President and General Counsel, telephone: (650) 569-5000.

                                       22
<PAGE>

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

                              [AT HOME CORP. LOGO]

                              At Home Corporation

                              10,673,549 Shares of
                             Series A common stock

                               ----------------

                                   PROSPECTUS
                              January      , 2000

                               ----------------


   You should rely only on the information contained in or incorporated by
reference in this prospectus. We have not authorized anyone to provide you with
different information. The selling stockholders are offering to sell, and
seeking offers to buy, shares of common stock only in jurisdictions where
offers and sales are permitted. The information contained in this prospectus is
accurate only as of the date of this prospectus, regardless of the time of
delivery of this prospectus or of any sale of common stock.

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>

                                    PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution.

   The following table sets forth the various expenses payable by the
Registrant in connection with the sale and distribution of the securities being
registered hereby. Normal commission expenses and brokerage fees are payable
individually by the selling stockholders. All amounts are estimated except the
Securities and Exchange Commission registration fee and Nasdaq National Market
listing fee.

<TABLE>
<S>                                                                    <C>
Securities and Exchange Commission registration fee................... $119,757
Nasdaq National Market listing fee....................................   17,500
Accounting fees and expenses..........................................   10,000
Legal fees and expenses...............................................   30,000
Miscellaneous......................................................... $  5,000
                                                                       --------
  Total...............................................................  182,257
                                                                       ========
</TABLE>

Item 15. Indemnification of Directors and Officers.

   As permitted by the Delaware General Corporation Law, the Registrant's
Certificate of Incorporation includes a provision that eliminates the personal
liability of its directors to the Registrant or its stockholders for monetary
damages for breach of fiduciary duty as a director, except for liability:

  . for any breach of the director's duty of loyalty to the corporation or
    its stockholders

  . for acts or omissions not in good faith or that involve intentional
    misconduct or a knowing violation of law

  . under Section 174 of the Delaware General Corporation Law

  . for any transaction from which the director derived an improper personal
    benefit

   As permitted by Section 145 of the Delaware General Corporation Law, the
Registrant's Certificate of Incorporation further provides:

  .  for mandatory indemnification, to the fullest extent permitted by
     applicable law, for any person who is or was a director or officer, or
     is or was serving at the request of the Registrant as a director,
     officer, employee or agent of another corporation or of a partnership,
     joint venture, trust, enterprise or nonprofit entity, including service
     with respect to employee benefit plans, against all liability and loss
     suffered and expenses (including attorneys' fees) reasonably incurred by
     this person

  . that the Registrant's obligation to indemnify any person who was or is
    serving at the Registrant's request as a director, officer, employee or
    agent of another corporation, partnership, joint venture, trust,
    enterprise or nonprofit entity must be reduced by any amount the person
    may collect as indemnification from the other corporation, partnership,
    joint venture, trust, enterprise or nonprofit entity

  . that the Registrant must advance to all indemnified parties the expenses
    (including attorneys' fees) incurred in defending any proceeding provided
    that indemnified parties (if they are directors or officers) must provide
    the Registrant an undertaking to repay the advances if indemnification is
    determined to be unavailable

  . that the rights conferred in the Certificate of Incorporation are not
    exclusive

  . that the Registrant may not retroactively amend the Certification of
    Incorporation provisions relating to indemnity

                                      II-1
<PAGE>

   The indemnification provision in the Registrant's Certificate of
Incorporation and the Indemnification Agreements entered into between the
Registrant and each of its directors and executive officers may be sufficiently
broad to permit indemnification of the Registrant's directors and officers for
liabilities arising under the Securities Act. The Registrant has also obtained
directors' and officers' liability insurance. The following documents are
incorporated by reference:

<TABLE>
<CAPTION>
                                      Document
                                      --------
 <C> <S>
  1  The Registrant's Fifth Amended and Restated Certificate of Incorporation
     filed May 28, 1999 (incorporated by reference to Exhibit 4.01 to the
     Registrant's registration statement on Form S-8, File No. 333-79883, filed
     with the Commission on June 3, 1999).
  2  Form of Indemnification Agreement entered into by the Registrant with each
     of its directors and executive officers (incorporated by reference to
     Exhibit 10.09 to the Registrant's registration statement on Form S-1, File
     No. 333-27323, declared effective July 11, 1997).
</TABLE>

Item 16. Exhibits.

   The following exhibits are filed with this registration statement or
incorporated into this registration statement by reference:

<TABLE>
<CAPTION>
     Exhibit
     Number                             Exhibit Title
     -------                            -------------
     <C>     <S>
      3.01*  The Registrant's Fifth Amended and Restated Certificate of
             Incorporation filed with the Delaware Secretary of State on May
             28, 1999 (incorporated by reference to Exhibit 4.01 to the
             Registrant's registration statement on Form S-8, File No. 333-
             79883, filed with the Commission on June 3, 1999).
      3.02*  The Registrant's Second Amended and Restated Bylaws as adopted on
             July 16, 1997 (incorporated by reference to Exhibit 3.05 to the
             Registrant's registration statement on Form S-1, File No. 333-
             27323, declared effective by the Commission on July 11, 1997).
      4.01*  Form of certificate of the Registrant's Series A Common Stock
             (incorporated by reference to Exhibit 4.05 to the Registrant's
             registration statement on Form S-1, File No. 333-27323, declared
             effective by the Commission on July 11, 1997).
      4.02*  Amended and Restated Stockholders' Agreement, dated August 1,
             1996, by and among the Registrant and the parties indicated
             therein, as amended on May 15, 1997 (incorporated by reference to
             Exhibit 4.04 to the Registrant's registration statement on Form S-
             1, File No. 333-27323, declared effective July 11).
      5.01   Opinion of Fenwick & West LLP regarding the legality of the shares
             of Series A common stock being registered.
     23.01   Consent of Fenwick & West LLP (included in Exhibit 5.01).
     23.02   Consent of Ernst & Young LLP, Independent Auditors.
     23.03** Consent of PricewaterhouseCoopers LLP, Independent Accountants.
     24.01   Power of attorney (see pg. II-4 of this registration statement).
</TABLE>
- --------
 *Previously filed.
**To be filed by amendment.

Item 17. Undertakings.

   The Registrant undertakes:

     (1) To file, during any period in which offers or sales are being made,
  a post-effective amendment to this registration statement:

       (a) to include any prospectus required by Section 10(a)(3) of the
    Securities Act;

                                      II-2
<PAGE>

       (b) to reflect in the prospectus any facts or events arising after
    the effective date of the registration statement (or the most recent
    post-effective amendment thereof) which, individually or in the
    aggregate, represent a fundamental change in the information set forth
    in the registration statement; and

       (c) to include any material information with respect to the plan of
    distribution not previously disclosed in the registration statement or
    any material change to the information in the registration statement;

  provided, however, that paragraphs (1)(a) and (1)(b) above do not apply if
  the information required to be included in a post-effective amendment by
  those paragraphs is contained in periodic reports filed with or furnished
  to the Commission by Registrant pursuant to Section 13 or Section 15(d) of
  the Exchange Act that are incorporated by reference in the registration
  statement.

     (2) That, for the purpose of determining any liability under the
  Securities Act, each post-effective amendment shall be deemed to be a new
  registration statement relating to the securities offered in the
  registration statement, and the offering of the securities at that time
  shall be deemed to be the initial bona fide offering of those securities.

     (3) To remove from registration by means of a post-effective amendment
  any of the securities being registered which remain unsold at the
  termination of the offering.

     (4) That, for purposes of determining any liability under the Securities
  Act, each filing of Registrant's annual report pursuant to Section 13(a) or
  Section 15(d) of the Exchange Act that is incorporated by reference in the
  registration statement shall be deemed to be a new registration statement
  relating to the securities offered in the registration statement, and the
  offering of the securities at that time shall be deemed to be the initial
  bona fide offering of those securities.

     (5) Insofar as indemnification for liabilities arising under the
  Securities Act may be permitted to directors, officers and controlling
  persons of the Registrant pursuant to the provisions discussed in Item 6
  hereof, or otherwise, the Registrant has been advised that in the opinion
  of the Securities and Exchange Commission this indemnification is against
  public policy as expressed in the Securities Act and is, therefore,
  unenforceable. If a claim for indemnification against these liabilities
  (other than the payment by the Registrant of expenses incurred or paid by a
  director, officer or controlling person of the Registrant in the successful
  defense of any action, suit or proceeding) is asserted by the director,
  officer or controlling person in connection with the securities being
  registered under this registration statement, the Registrant will, unless
  in the opinion of its counsel the matter has been settled by controlling
  precedent, submit to a court of appropriate jurisdiction the question
  whether indemnification by it is against public policy as expressed in the
  Securities Act and will be governed by the final adjudication of this
  issue.

                                      II-3
<PAGE>

                                   SIGNATURES

   Pursuant to the requirements of the Securities Act of 1933, the Registrant,
At Home Corporation, certifies that it has reasonable grounds to believe that
it meets all of the requirements for filing on Form S-3 and has duly caused
this registration statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in Redwood City, State of California, on this 3rd
day of January, 2000.

                                          At Home Corporation

                                                  /s/ Thomas A. Jermoluk
                                          By: _________________________________
                                                    Thomas A. Jermoluk
                                               Chairman, President andChief
                                                     Executive Officer

   Each individual whose signature appears below constitutes and appoints
Thomas A. Jermoluk, Kenneth A. Goldman and David G. Pine, and each of them, his
true and lawful attorneys-in-fact and agents, each with the power of
substitution, for him and in his name, place and stead, in any and all
capacities, to sign any and all amendments (including post-effective
amendments) to this registration statement, and to sign any registration
statement for the same offering covered by this registration statement that is
to be effective upon filing pursuant to Rule 415 promulgated under the
Securities Act of 1933, and all post-effective amendments thereto, and to file
the same, with all exhibits thereto and all documents in connection therewith,
with the Securities and Exchange Commission, granting unto said attorneys-in-
fact and agents, and each of them, full power and authority to do and perform
each and every act and thing requisite and necessary to be done in and about
the premises, as fully to all intents and purposes as he might or could do in
person, hereby ratifying and confirming all that said attorneys-in-fact and
agents or any of them, or his or their substitute or substitutes, may lawfully
do or cause to be done by virtue hereof.

   Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
             Signature              Title                                         Date
             ---------              -----                                         ----
 <C>                                <S>                                    <C>
 Principal Executive Officer:

       /s/ Thomas A. Jermoluk       Chairman and Chief Executive Officer     January 3, 2000
 _________________________________
         Thomas A. Jermoluk
 Principal Financial Officer:
</TABLE>

<TABLE>
 <S>                                <C>                                  <C>
       /s/ Kenneth A. Goldman       Senior Vice President and Chief        January 3, 2000
 _________________________________   Financial Officer
         Kenneth A. Goldman
 Principal Accounting Officer:

        /s/ Robert A. Lerner        Corporate Controller                   January 3, 2000
 _________________________________
          Robert A. Lerner
 Additional Directors:

 _________________________________  Director
       William R. Hearst III

      /s/ C. Michael Armstrong      Director                               January 3, 2000
 _________________________________
        C. Michael Armstrong

          /s/ George Bell           Director                               January 3, 2000
 _________________________________
            George Bell

         /s/ L. John Doerr          Director                               January 3, 2000
 _________________________________
           L. John Doerr

 _________________________________  Director
          Raymond Liguori
</TABLE>

                                      II-4
<PAGE>

<TABLE>
<CAPTION>
             Signature                             Title                        Date
             ---------                             -----                        ----
 <S>                                <C>                                  <C>
         /s/ John C. Malone         Director                               January 3, 2000
 _________________________________
           John C. Malone
        /s/ John C. Petrillo        Director                               January 3, 2000
 _________________________________
          John C. Petrillo
 _________________________________  Director
          Brian L. Roberts
 _________________________________  Director
           James R. Shaw
        /s/ David M. Woodrow        Director                               January 3, 2000
 _________________________________
          David M. Woodrow
</TABLE>

                                      II-5
<PAGE>

                                 EXHIBIT INDEX

<TABLE>
<CAPTION>
     Exhibit
     Number                                        Exhibit Title
     -------                                       -------------
     <S>       <C>
      5.01     Opinion of Fenwick & West LLP regarding the legality of the shares of Series A common
               stock being registered.
     23.01     Consent of Fenwick & West LLP (included in Exhibit 5.01).
     23.02     Consent of Ernst & Young LLP, Independent Auditors.
</TABLE>


<PAGE>

                                                                 January 3, 2000

At Home Corporation
450 Broadway
Redwood City, California 94063

Gentlemen/Ladies:

   At your request, we have examined the Registration Statement on Form S-3
(the "Registration Statement") to be filed by you with the Securities and
Exchange Commission (the "Commission") on or about January 3, 2000 in
connection with the registration under the Securities Act of 1933, as amended,
of an aggregate of 10,673,549 shares of your Series A Common Stock (the
"Stock"), all of which will be sold by certain selling stockholders (the
"Selling Stockholders").

   In rendering this opinion, we have examined the following:

   (1) your registration statement on Form 8-A filed with the Commission on
       June 13, 1997 (File No. 000-22697), together with the order of
       effectiveness issued by the Commission therefor on July 11, 1997;

   (2) your Annual Report on Form 10-K/A for the year ended December 31,
       1998, as amended on March 31, 1999 and on April 27, 1999;

   (3) your Quarterly Reports on Form 10-Q for the quarters ended March 31,
       June 30 and September 30, 1999;

   (4) your Current Reports on Form 8-K filed with the Commission on January
       14, 1999 (as amended on February 19, 1999); January 21, 1999 (two
       reports); February 19, 1999; April 8, 1999; June 14, 1999 (as amended
       on August 13, 1999); August 2, 1999; October 27, 1999; December 6,
       1999 and December 22, 1999;

   (5) the Registration Statement, together with the exhibits filed as a part
       thereof;

   (6) the prospectus prepared in connection with the Registration Statement
       (the "Prospectus");

   (7) your Fifth Amended and Restated Certificate of Incorporation filed
       with the Delaware Secretary of State on May 28, 1999 and your Second
       Amended and Restated Bylaws, each of which are listed as exhibits to
       the Registration Statement;

   (8) the minutes of meetings and actions by written consent of the
       stockholders and Board of Directors that are contained in your minute
       books that are in our possession;

   (9) summary reports from you confirming the number of shares of your
       capital stock outstanding as of October 31, 1999 and the number of
       options, warrants and any other rights to acquire shares of your
       capital stock outstanding as of October 31, 1999; and

  (10) a Management Certificate addressed to us and dated of even date
       herewith executed by you containing certain factual and other
       representations.

   By telephone call to the offices of the Commission, we have confirmed the
continued effectiveness of your registration under the Securities Exchange Act
of 1934, as amended (the "Exchange Act"), and the timely filing by you of all
reports required to be filed by you pursuant to Rules 13, 14 and 15 promulgated
under the Exchange Act.

   In our examination of documents for purposes of this opinion, we have
assumed, and express no opinion as to, the genuineness of all signatures on
original documents, the authenticity and completeness of all documents
submitted to us as originals, the conformity to originals and completeness of
all documents submitted to us as copies, the legal capacity of all natural
persons executing the same, the lack of any undisclosed termination,
modification, waiver or amendment to any document reviewed by us and the due
authorization, execution and delivery of all documents where due authorization,
execution and delivery are prerequisites to the effectiveness thereof.
<PAGE>

   As to matters of fact relevant to this opinion, we have relied solely upon
our examination of the documents referred to above and have assumed the current
accuracy and completeness of the information obtained from public officials and
records referred to above. We have made no independent investigation or other
attempt to verify the accuracy of any of such information or to determine the
existence or non-existence of any other factual matters; however, we are not
aware of any facts that would cause us to believe that the opinion expressed
herein is not accurate.

   We are admitted to practice law in the State of California, and we express
no opinion herein with respect to the application or effect of the laws of any
jurisdiction other than the existing laws of the United States of America and
the State of California and (without reference to case law or secondary
sources) the existing Delaware General Corporation Law.

   In connection with our opinion expressed below, we have assumed that, at or
prior to the time of the delivery of any shares of Stock, the Registration
Statement will have been declared effective under the Securities Act of 1933,
as amended, that the registration will apply to such shares of Stock and will
not have been modified or rescinded and that there will not have occurred any
change in law affecting the validity or enforceability of such shares of Stock.

   Based upon the foregoing, it is our opinion that up to 10,673,549 shares of
Stock to be sold by the Selling Stockholders pursuant to the Registration
Statement, are or, in the case of shares subject to issuance upon conversion,
upon issuance upon conversion in accordance with the terms of the Certificate
of Designation, will be legally issued, fully paid and nonassessable.

   We consent to the use of this opinion as an exhibit to the Registration
Statement and further consent to all references to us, if any, in the
Registration Statement, the Prospectus constituting a part thereof and any
amendments thereto.

   This opinion speaks only as of its date and we assume no obligation to
update this opinion should circumstances change after the date hereof. This
opinion is intended solely for the your use as an exhibit to the Registration
Statement for the purpose of the above sale of the Stock and is not to be
relied upon for any other purpose.

                                          Very truly yours,

                                          FENWICK & WEST LLP

                                          By: /s/ Jeffrey R. Vetter
                                             __________________________________
                                             Jeffrey R. Vetter

<PAGE>

               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

   We consent to the reference to our firm under the caption "Experts" in the
Registration Statement on Form S-3 and related Prospectus of At Home
Corporation for the registration of 10,673,549 shares of its Series A common
stock and to the incorporation by reference therein of our report dated January
19, 1999, with respect to the consolidated financial statements of At Home
Corporation included in its Annual Report on Form 10-K/A for the year ended
December 31, 1998, as amended, filed with the Securities and Exchange
Commission.

                                                           /s/ ERNST & YOUNG LLP

Walnut Creek, California
January 3, 2000



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