The debut of a number of new series and new episodes of some old ones were hammered by NBC's Sunday Night Football game between the Dallas Cowboys and the Chicago Bears. The game, and its lead-in, averaged an 8.9 rating and a 15 share for NBC or about 16.9 million viewers. As strong as that might appear, the Sunday Night Football telecasts are off from the 20.1-million-viewer average at this point last year. Analysts pointed out, however, that ratings were down across the board for the major networks Sunday night, with only the veteran CBS news magazine 60 Minutes holding its own with a 7.7 rating and a 14 share or 11.45 million viewers in the 7:00 p.m. hour. On the other hand, The Power of 10, which followed at 8:00 p.m., drew only a 5.0/8 for the network. The season premiere of Cold Case at 9:00 p.m. improved to a 7.9/12, while the season premiere of Shark produced a 7.6/13 for CBS at 10:00 p.m. ABC drew indifferent numbers for a two-hour repeat edition of Extreme Makeover: Home Edition and retrospectives of Desperate Housewives and Brothers & Sisters. Fox attracted good ratings with an NFL overrun at 7:00 p.m. that drew 15.28 million viewers, followed by the postgame The O.T., which drew 9.14 million viewers. But viewership was down for The Simpsons, King of the Hill, and Family Guy, which followed.