While I like many of the cabel network shows, I wish they weren't lumped in with the network shows. The network shows just can't compete with the budgets or the stars given to the cabel shows.
Sure they could.
The networks have massive, massive budgets, far more than many cable nets allot to their shows. Look what networks pay actors, compared to what cable nets do. John Hamm makes like 1/7th what Ashton Kutcher makes per episode, and his are twice as long. And he can actually act.
The cast of Friends was making a million dollars PER PERSON, PER EPISODE. That's more than anyone on any cable show has ever pulled in or even close.
As for the stars - the heralded stars go where the writing is, not the money. I'm pretty sure Steve Buschemi could get on some halfwit sitcom if he wanted to. He doesn't seem to want to.
That said, cable shows often build stars from unknown or largely unknown actors - because they can do that. Networks often also want names, cable often wants actors. Hence Jim Belushi on CBS, James Gandolfini on HBO.
Cable gets more heralded shows because they care to build more heralded shows, because it's how they draw viewers. They need quality - they can't charge advertising rates based on people didn't turn the channel after football. Hence Mad Men, Boardwalk Empire, Breaking Bad, etc. Networks need people to leave the channel on. Hence... According to Jim, Two and a Half Men, Whitney, etc.