I honestly don't think a lot of these shows are any worse than the ones on your list. I think we're in a very good era for TV. I find myself watching more shows than I ever have. Look at what we have on the air now: Lost, Psych, Burn Notice, Fringe, BSG, The Daily Show, The Office, House, Big Love, Flight of the Conchords, Dexter, Breaking Bad, Damages, 30 Rock. Watched the Castle pilot the other night and thought it was excellent entertainment, pure cheese but with a heart and a brain. I'm sure there's shows I've included or not included that you disagree with, but there is a lot of quality stuff on the air these days in terms of production value and writing.
I watched the old Charlie Rose with Conan from a couple years back and he commented that we were in a golden age of TV and he didn't even know if he could get a job writing today with how good and competitive the TV writers are. I'd have to agree. There's a *ton* of good stuff on these days. In the nineties everyone would have been going gaga over Fringe and even relative stinkers like Dollhouse.