Exhibit 99


COMCAST                                                          PRESS RELEASE

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

FOR IMMEDIATE RELEASE


                             COMCAST MAKES PROPOSAL
                          TO MERGE WITH AT&T BROADBAND

                  Offers $58 Billion for Core Broadband Assets
                 Plus Additional Value for Non-Core Investments

              Strategic Combination Would Create World's Preeminent
                  Provider of Broadband Communications Services

PHILADELPHIA - July 8, 2001 - Comcast Corporation (Nasdaq: CMCSA, CMCSK) today
announced that it has made a proposal to AT&T (NYSE: T) to merge with AT&T's
broadband business in a tax-free transaction. The combination would create the
largest broadband communications provider in the world with approximately 22
million subscribers and leading positions in eight of the nation's 10 largest
markets.

Terms of the proposed transaction:

    o   Comcast would issue 1.0525 billion shares of Comcast stock with a value
        of $44.5 billion based on Friday's closing price and would assume $13.5
        billion in debt for AT&T's core broadband business, which is composed of
        AT&T's 13.5 million cable subscribers and its joint venture interests.
    o   Comcast is also prepared to acquire AT&T's interests in Time Warner
        Entertainment, Cablevision, and Rainbow Media by assuming more debt and
        issuing more equity to reflect their value.
    o   AT&T shareholders would own a majority of the economic and voting
        interests of the combined company.
    o   Comcast's offer delivers a multiple of 30x both 2000 EBITDA and
        annualized first quarter 2001 EBITDA, which in either case far exceeds
        the trading multiple of any publicly traded broadband company.
    o   AT&T shareholders would receive a very substantial premium over
        published reports of the estimated value of AT&T's broadband business.
        Comcast's offer represents a value of over $4,000 per subscriber.
    o   AT&T shareholders would receive Comcast shares valued at $12.60 per AT&T
        share based on Friday's closing price (75% of AT&T's current per share
        market value), while retaining complete ownership of AT&T's historical
        communications business that




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        according to published reports has a value approaching $70 billion on a
        standalone basis. This combined value is dramatically higher than AT&T's
        current market value per share of $16.80 (after taking into account the
        AWE distribution).

Comcast expects to generate combination benefits of at least $1.25 billion
annually upon the full integration of Comcast and AT&T Broadband, with a
potential to increase these benefits to between $2.6 billion and $2.8 billion
annually as the companies work together to improve AT&T Broadband's margins. As
a result of these combination benefits, merging Comcast and AT&T Broadband would
be value accretive to both groups of shareholders.

"This is an extremely compelling combination for AT&T and Comcast shareholders,
customers and employees," said Mr. Ralph J. Roberts, Chairman of Comcast.
"AT&T's board of directors has the opportunity not only to deliver a
considerable premium to its shareholders, but also to create both tremendous
growth and significant value for the long-term. In my judgment, the new company
would be ideally positioned to chart the course for the future of broadband."

"Over the last several months, we held discussions with AT&T Broadband regarding
this combination," said Mr. Brian L. Roberts, President of Comcast. "It's
unfortunate that we were unable to continue our dialogue. At this point,
however, we believe that AT&T's board of directors should consider our proposal
before a proxy statement relating to its broadband tracking stock proposal is
sent to AT&T shareholders later this month.

"Our proposal represents a dramatic acceleration of AT&T's plan to separate its
broadband business," said Mr. Roberts. "This combination would unlock the value
of AT&T's broadband assets while avoiding the market risks, costs and
uncertainties related to AT&T's planned broadband IPO. Significantly, under our
proposal, AT&T shareholders will be majority owners in the largest broadband
company in the world. And given our track record, I'm confident that they will
welcome our stock as currency."

Since its IPO in 1972, Comcast's stock has grown at a compound annual growth
rate of 24% compared to 12% for the S&P 500. Since 1998, Comcast's stock price
has appreciated nearly 168% compared to an approximately 23% increase for the
S&P 500. When measured in periods of one, three, five, seven and ten years,
Comcast's Class A Special shares have outperformed the cable composite index,
the S&P 500 and the Nasdaq.

Morgan Stanley, JP Morgan, Merrill Lynch and Quadrangle Group are financial
advisors to Comcast. Davis Polk & Wardwell is legal advisor to Comcast.

The full text of the letter submitted to the Board of Directors of AT&T is
attached.

                                       ***



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July 8, 2001

Mr. C. Michael Armstrong
Chairman and CEO
AT&T Corp.
32 Avenue of the Americas
New York, NY 10013


Dear Mike:

Over many months of discussions we have shared a vision that AT&T Broadband and
Comcast should be combined to create the world's leader in broadband
communications. We believed those discussions were progressing towards a
tax-free transaction that would dramatically accelerate your own plan to
separate the broadband company. It is unfortunate that we were not able to agree
on a basis for continuing our dialogue. Accordingly, we submit this offer to you
for consideration by your Board before a proxy statement relating to your
broadband tracking stock proposal is sent to your shareholders later this month.

Under our proposal Comcast would issue 1.0525 billion shares with a value of
$44.5 billion based on Friday's closing price and assume $13.5 billion in debt
for your core broadband business, which is composed of your 13.5 million cable
subscribers as well as your joint venture interests. In addition, we are
prepared to acquire your interests in TWE, Cablevision and Rainbow by assuming
more debt and issuing more equity to reflect their values. Under our proposal
your shareholders would own a majority of the economic and voting interests of
the combined company in a transaction that would be tax-free to AT&T and all
shareholders.

Our proposal values your core broadband business at $58 billion, which
represents 30x both 2000 EBITDA and annualized first quarter 2001 EBITDA. AT&T
shareholders would receive Comcast shares valued at $12.60 per AT&T share based
on Friday's closing price, while retaining complete ownership of AT&T's
historical communications business that according to published reports has a
value approaching $70 billion on a standalone basis. This combined value is
dramatically higher than your current market value per share of $16.80 after
giving effect to the spin-off of AT&T Wireless.

Your shareholders would receive significantly more value through a combination
with Comcast than through your planned restructuring. Not only does our proposal
avoid the market risks, costs and uncertainties inherent in the planned
broadband IPO, it values your business at a significant premium to your
potential public market valuation. At 30x AT&T Broadband's annualized first
quarter 2001 EBITDA, our offer far exceeds the trading multiple of any publicly
traded broadband company. Put another way, our proposal delivers a very
substantial premium over published reports of the estimated value of your
broadband business.




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After combining our broadband businesses, your shareholders will retain a
majority of the future appreciation resulting from substantial combination
benefits. Upon full integration of our broadband businesses, we expect the
combination benefits will amount to at least $1.25 billion annually. This
benefit could eventually increase to between $2.6 and $2.8 billion annually as
we work together to raise the level of your margins. None of these figures take
account of any new content, internet or other value creating opportunities. As a
result of these combination benefits, merging our broadband companies will
clearly be value accretive to both groups of shareholders.

Given the strength of Comcast's balance sheet we are confident that the new
company would have an investment grade debt rating, a view which is shared by
our financial advisors, Morgan Stanley, JP Morgan and Merrill Lynch.

We understand that there were concerns within AT&T about Comcast's voting
structure. As you know, multi-class structures are common in our industry and
have not affected stock trading values. Our Class A Special shares have
outperformed the cable composite index, the S&P 500 and the Nasdaq in each of
the last one, three, five, seven and ten year periods. We are confident that
your shareholders would welcome our currency. In fact, 38 of your 50 largest
institutional shareholders also have significant investments in Comcast.

Our proposal is subject to the negotiation of a definitive merger agreement. We
are prepared to deliver a draft merger agreement as soon as you wish. We are
confident that the combination does not present any significant regulatory
issues.

In light of the significance of this proposal to both your shareholders and
ours, we are publicly releasing the text of this letter.

We hope that you will work with us to make this vision a reality.

Respectfully submitted,


Ralph J. Roberts                 Brian L. Roberts
Chairman of the Board            President


                                 ***************


Financial Community Meeting
- ---------------------------
Comcast Corporation will host a meeting with the financial community on July 9,
2001 at 10:00 a.m. Eastern Daylight Time in New York. The meeting is being held
in the ballroom (20th floor) of the St. Regis Hotel, which is on 55th Street
between Madison and Fifth Avenues. The meeting will be broadcast live via the
Internet at www.cmcsk.com.




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In addition, the meeting will be available via teleconference by dialing
888-754-3420 (international: 212-346-7476). A telephone replay will be available
beginning an hour following the meeting until July 16, 2001 at midnight Eastern
Daylight Time. To access the rebroadcast, please dial 800-633-8284
(international callers: 858-812-6440) and enter code 19308891. An audio
recording of the meeting will also be available on Comcast's website
(www.cmcsk.com) starting at 5:00 p.m. Eastern Daylight Time on July 9 and ending
at midnight Eastern Daylight Time on July 16, 2001.

Press Conference Call
- ---------------------
Comcast Corporation will also host a press conference call on July 9, 2001 at
11:30 a.m. Eastern Daylight Time in New York. To participate in the
teleconference dial 888-732-8129 (international: 212-346-0261). A telephone
replay will be available beginning an hour following the call until July 16,
2001 at midnight Eastern Daylight Time. To access the rebroadcast, please dial
800-633-8284 (international callers: 858-812-6440) and enter code 19309191.

In addition, the teleconference will also be broadcast live via the Internet at
www.cmcsk.com. An audio recording of the call will be available on Comcast's
website (www.cmcsk.com) starting at 5:00 p.m. Eastern Daylight Time on July 9
ending at midnight Eastern Daylight Time on July 16, 2001.

This press release contains forward-looking statements within the meaning of the
Private Securities Litigation Reform Act of 1995. In some cases, you can
identify those so-called "forward-looking statements" by words such as "may,"
"will," "should," "expects," "plans," "anticipates," "believes," "estimates,"
"predicts," "potential," or "continue," or the negative of those words and other
comparable words. Comcast Corporation ("Comcast") wishes to take advantage of
the "safe harbor" provided for by the Private Securities Litigation Reform Act
of 1995 and you are cautioned that actual events or results may differ
materially from the expectations expressed in such forward-looking statements as
a result of various factors, including risks and uncertainties, many of which
are beyond the control of Comcast. Factors that could cause actual results to
differ materially include, but are not limited to: (1) the businesses of Comcast
and AT&T Broadband may not be integrated successfully or such integration may be
more difficult, time-consuming or costly than expected; (2) expected combination
benefits from the transaction may not be fully realized or realized within the
expected time frame; (3) revenues following the transaction may be lower than
expected; (4) operating costs, customer loss and business disruption, including,
without limitation, difficulties in maintaining relationships with employees,
customers, clients or suppliers, may be greater than expected following the
transaction; (5) the regulatory approvals required for the transaction may not
be obtained on the proposed terms or on the anticipated schedule; (6) the
effects of legislative and regulatory changes; (7) the potential for increased
competition; (8) technological changes; (9) the need to generate substantial
growth in the subscriber base by successfully launching, marketing and providing
services in identified markets; (10) pricing pressures which could affect demand
for Comcast's services; (11) Comcast's ability to expand its distribution; (12)
changes in labor, programming, equipment and capital costs; (13) Comcast's
continued ability to create or acquire programming and products that customers
will find attractive; (14) future acquisitions, strategic


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partnerships and divestitures; (15) general business and economic conditions;
and (16) other risks described from time to time in Comcast's periodic reports
filed with the Securities and Exchange Commission.

                                      # # #



Investor Contact:
- ----------------
Marlene S. Dooner, Vice President, Investor Relations    (215) 981-7392
William E. Dordelman, Vice President, Finance        (215) 981-7550
Kelley L. Claypool, Manager, Investor Relations      (215) 981-7729

Media Contact:
- -------------
The Abernathy MacGregor Group                    (212) 371-5999
Adam Miller, Steve Frankel, Brian Faw




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