From Variety (sorry no link, a friend sent):

It’s still early in the season, but ratings results for NBC’s new fall series prove — again — that hype doesn’t provide any guarantees and that surprise hits will emerge. The future is starting to look sketchy for NBC’s “Studio 60 on the Sunset Strip,” a show that most critics heralded as one of the brightest spots of the new season. But as “Studio 60″ slumps, the net’s comicbook drama “Heroes,” which came in with lower expectations and no high-profile names attached, is shaping up as a hit. The Peacock invested a great deal of effort and money into launching “Studio,” and the net believed in the show so much that it originally planned to air “Studio 60″ in the primo Thursday 9 p.m. slot (before “Grey’s Anatomy” sent it scurrying to Monday). “Studio 60″ has now lost a sizable chunk of its premiere audience after just three weeks, dipping 32% from its launch. On the flip side, “Heroes” (5.5 rating/13 share in adults 18-49, 12.96 million viewers overall) declined just 7% from its strong series premiere to beat its broadcast rivals in most demos, according to Nielsen. No other first-year drama this fall has rated higher in 18-49 with its second seg than “Heroes.” And of all NBC dramas to bow in the past three seasons, only “Medium” rated higher in week two (6.3/16). “Heroes” was supposed to be a more difficult sell for NBC, while “Studio 60,” with its Aaron Sorkin/Thomas Schlamme auspices, garnered most of the media attention. The dipping numbers for “Studio 60″ put NBC in a tough spot. Drama has quickly become the highest-indexing show among upscale viewers on TV. But if the ratings continue to dip, its desirable demos may not make up for those smaller overall numbers. And there’s no obvious alternative timeslot for “Studio 60,” at least immediately. “I think they’re just going to have to grin and bear it for now,” a rival network exec said of the drooping ratings. “Studio 60″ has now been hit with double-digit declines for two weeks in a row, posting a 3.4 rating/9 share in adults 18-49 on Monday. That’s down 19% from last week (4.2/11). Show drew 8.85 million viewers overall. Ironically, the fictional “Studio 60 on the Sunset Strip” recently saw its ratings bounce thanks to an on-air tirade by the show’s exec producer (played by Judd Hirsch). Perhaps it’s time for real-life “Studio 60″ mastermind Aaron Sorkin to film his own on-air camera rant about the state of network TV.