1. Annual Meeting of Shareholders
May 14, 2008
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2. Safe Harbor
Caution Concerning Forward-Looking Statements
This presentation 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. We wish to take
advantage of the “safe harbor” provided for by the Private Securities Litigation Reform Act of 1995 and we
caution you that actual events or results may differ materially from the expectations we express in our forward-
looking statements as a result of various risks and uncertainties, many of which are beyond our control.
Factors that could cause our actual results to differ materially from these forward-looking statements include:
(1) changes in the competitive environment, (2) changes in business and economic conditions, (3) changes in
our programming costs, (4) changes in laws and regulations, (5) changes in technology, (6) adverse decisions
in litigation matters, (7) risks associated with acquisitions and other strategic transactions, (8) changes in
assumptions underlying our critical accounting policies, and (9) other risks described from time to time in
reports and other documents we file with the Securities and Exchange Commission. We undertake no
obligation to update any forward-looking statements. The amount and timing of share repurchases and
dividends is subject to business, economic and other relevant factors.
Non-GAAP Financial Measures
Our presentation may also contain non-GAAP financial measures, as defined in Regulation G, adopted by the
SEC. We provide a reconciliation of these non-GAAP financial measures to the most directly comparable GAAP
financial measure in our quarterly earnings releases, which can be found on the Financial Information page of
our web site at www.cmcsa.com or www.cmcsk.com.
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3. Focus:
Profitable Growth
to Drive Shareholder Value
3

4. Focus:
Profitable Growth to Drive Shareholder Value
Best consumer experience
New product innovation
Enhancing shareholder value
4

5. 2007: Solid Performance in a Challenging
Environment
($ in billions except Adjusted EPS and RGU
2006 2007
Additions)
Consolidated Revenue $27.8 $30.1
Pro Forma Growth Rate 12%
Consolidated OCF $10.5 $11.8
Pro Forma Growth Rate 13%
Consolidated FCF $2.6 $2.3
Share Repurchases $2.3 $3.1
Adjusted EPS $0.60 $0.74
New Product (RGU) Additions 5.1 6.0
5

6. A More Challenging Environment:
A Slowing Economy + Increasing Competition
HSD Net Adds and Y/Y Percentage Change*
Video Net Adds and Y/Y Percentage Change*
(in thousands) (in thousands)
2006 2006
2007 2007
846
2,391
774
2,300
678
540 1,953
538 1,845
481
423
322 1,613 1,563
1,317 1,306
1Q 2Q 3Q 4Q 1Q07 2Q07 3Q07 4Q07
’07 vs. ‘06
25% -40% -22% -38% -7% -18% -20% -29%
Change
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* Video Net Adds Include: CVC, TWC, CHTR, CMCSA, DTV, DISH, VZ FiOS and T U-Verse
HSD Net Adds Include: T, TWC, CMCSA, CVC, VZ and CHTR

7. 2008: Comcast Responded
• Triple Play remains core message in the market
• Expanding market offers to address changing
environment:
– Introducing new Double Play and Economy Offers
Target new customers
Provide choices for retention and upgrades
Respond in competitive markets
– Strong early results
• Continue to invest to improve service and enhance
product portfolio
- Project Infinity: Focus on Hi-Def
- Docsis 3.0 or Wideband
7

8. Scale Matters
Highest Advertising Revenue / Sub Lowest Programming Costs / Sub
$70 $450
Advertising Revenue / Sub
Programming Costs / Sub
$65 $400
$60
$350
$55
$300
$50
$250
$45
$200
$40
$35 $150
0 5 10 15 20 25 0 5 10 15 20 25
Basic Subscribers
Basic Subscribers
Highest EBITDA Margin
50%
EBITDA Margin
40%
30%
20%
10%
0%
0 5 10 15 20 25
Basic Subscribers
8
5/14/2008
Source: Company filings and Wall Street research

9. Multiple Services Drive Growth
Revenue by Product and Total Average Revenue per Basic Subscriber
$107
ARPU
$62
ARPU
$42
ARPU
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 1Q08
Basic Video Digital Advertising HSD Phone Business Services
9
Note: Graph includes ARPU from circuit-switched phone acquired from AT&T Broadband.

10. A Superior Video Product
More than 7 Billion
DEC 2007:
ON DEMAND views 300 Million
since 2004 Views
DEC 2006:
180 Million
Views
DEC 2005:
140 Million
Views
DEC 2004:
75 Million
Views
1,700 3,500 9,000 10,000+
Programs Programs Programs Programs
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11. A Superior Video Product
• Today: more than 400 HD choices
• 1,000 HD choices by YE2008
• Next: 3,000 HD movies on demand
• Project Infinity: more content from more providers
– the most on demand content anywhere
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12. A Superior Broadband Experience
Drives Growth
Total HSD Subscribers
(subscribers in millions)
14.1
Penetration
14 12.4
28.4%
12 10.4
10
25.6%
8 22.0%
6
4
1Q06 1Q08
1Q07
2
1Q06 1Q07 1Q08
Stable Average Revenue per Subscriber: $40+/Month
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13. A Superior Broadband Experience
Drives Growth
Attracting More DSL Customers
(% of gross HSD additions from DSL)
1
64% 68%
1
61%
1
55% 58%
1 53%
1
1 42%
1 38% 40%
0
0
27%
0
0
0
0
1Q06 2Q06 3Q06 4Q06 1Q07 2Q07
24% 3Q07 Source: comScore
4Q07 1Q08
Blast!® PowerBoost® Wideband
20%
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14. Comcast Digital Voice More
Growth Ahead
Ramping CDV Subscribers
(in thousands) 11.5% 12.0%
5,200
4,950
10.3%
• $573MM in CDV Revenue for
4,700
5,088
4,450
9.3% 1Q08, up 110%
10.0%
4,449
4,200
CDV Penetration*
3,950
8.1%
3,700
3,831
3,450 8.0%
6.8%
3,200
• ~80% of CDV customers take
2,950
3,150
5.6%
2,700
all three products
6.0%
2,450
4.4% 2,459
2,200
1,950
1,700 4.0%
1,872
3.1%
2.5%
1,450
• Goal: 20-25% penetration of
1,357
1,200
950
homes passed
2.0%
871
700
450
542
200
-50 0.0%
1Q06 2Q06 3Q06 4Q06 1Q07 2Q07 3Q07 4Q07 1Q08
2006 2007 1Q08
4th Largest Residential Phone Company: 5.1MM Customers
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15. Building Value in Programming and
Interactive Media
National Cable Regional
Interactive Media
Sports Businesses
Networks
Solidly positioned Growing Comcast’s
Strong operating
and performing well online businesses –
businesses in
creating converged
10 markets
experiences
Bay Area
Chicago
Mid-Atlantic
New England
Northwest
Philadelphia
West
CSS
SNY
The Mtn
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16. Making a Difference
Volunteerism
May 3, 2008
Youth Leadership
• 50,000 Volunteers
Development
• 500 community projects
1MM Hours of Service
Since 2001
• 54% Increase in
Participation in 2007
• Total Contributions
$18.5MM+ since 2001
Literacy
• $17MM+ in Grants to Literacy
Programs since 2000
• 500+ Local Non-Profits
and Charitable Partners 16

17. Continuing Commitment to Return
Capital to Shareholders
132% FCF
$3.1Bn
127% FCF Share Repurchases*
90% FCF
$2.5Bn
$2.3Bn
142% FCF
$1.0Bn
FY2007 1Q08
FY2005 FY2006
Cumulative $16.4Bn** Returned 2005 thru 2009
* Includes the repurchase of $700MM of securities exchangeable into Comcast common stock in 2005 and 2006. 17
** Includes actual Comcast share repurchases and repurchases of exchangeable securities described above through 2007 as well as the
intention to complete approximately $7 billion of share repurchases by 2009 and pay an annual dividend of $0.25 in 2008 and 2009.

18. Building Long-Term Shareholder Value
$2,907,066
Average Annual Return
CMCSA 18.3%
S&P 500 Index 9.7%
CMCSA
$7,000 $195,458
S&P 500
05/9/2008
1972
1,000 Shares of CMCSA Purchased at the IPO at $7 per Share
18

19. 10 Year Performance: Comcast
Outperforms the S&P 500
Ten Year Total Return
(5/9/98-5/9/08)
86%
47%
0%
CMCSA S&P 500
CMCSA
19
S&P 500 3
Source: Bloomberg

20. YTD 2008: Outperforming the Market
and Our Peers
Year to Date Total Return
(1/1/08 – 5/1/08)
25.0%
22.6%
11.3%
12.5%
9.1%
3.2%
0.0%
(0.9%)
(1.9%) (1.9%)
(4.0%)
(4.9%)
(6.5%) (6.7%)
(7.6%) (8.0%)
(9.5%) (9.6%)
(10.8%)
-12.5%
Comcast DTV TWC DIS DISH T DJIA S&P TWX NASDAQ LBTYA VZ CVC Viacom NWS CBS
500
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