MsMusicRadio said:
As far as I can tell, the "networks' are just channels on the local cable system. There is origional programming on TNT and USA, much like "network" stuff. John Stewart is on 5 nights a week as is most cable hosts like Glenn Beck, Anderson Cooper, and Rachel Maddow. Why not Leno?
Even before cable TV, independent stations traditionally usually used the 5 day a week model for prime-time programming. But the answer to your question is - because the 3 "traditional" networks have never stripped programming 5 days a week. Network shows have almost always been shown once weekly.
There have been some exceptions - My grandmother liked
Peyton Place in the mid 60s, and it ran twice a week on ABC for awhile. I believe ABC tried the same thing with
Batman (Adam West). Then there was the period a few years ago when ABC ran
Who Wants to be a Millionaire almost constantly, but that was because the show was hot, and ABC was bankrupt of programming ideas at the time.
According to Jim was showing up multiple times a week, too. It was a real embarassment for Disney, and (I believe) at least part of reason Michael Eisner was pushed out the door.
Then there's Saturday night, which has become repeat night for the networks lately - they've decided its not worth the expense to produce original programming for the night people aren't watching.
But by and large,
once a week has been the model. NBC is trying to change that, but it's certainly not clear that it will be successful. From what I've read (on links provided in this thread), some local affiliates have lost audience for their late local news because of the Leno lead in. They are NOT happy. So even if the new model works for NBC, it may not work for the affiliates.