I stick to 2-3 shows per week. I really don't watch anymore than that... after all, shows are usually best during their sophomore seasons after that... it's downhill from there. (Mentalist being the next on my chopping block... talk about losing their edge!)
I'm one of the disloyal watchers. I gave up LOST after they opened the hatch, got bored with X-Files after it became overly obsessed with Alien conspiracies, and dropped Mad Men when it got to the point where... well... not one of the characters are likable.
When the writing goes south and crap just recycles, it's hard to care anymore. Few drama shows can last beyond 5 seasons, and when spin offs are green lit prematurely, it just dilutes a talented show into "yuck".
Next year I'm happy to see yet another slew of fresh faces, and many "film" actors migrating to the small screen.
The BORGIAS : Known as the first crime family, the infamous Borgias mix religion, politics, and greed just the way Shakespeare would've loved it. (Jeremy Irons)
GAME OF THRONES: George R.R. Martin's version of Lord of the Rings + sex + death. No wonder it's HBO. (Sean Bean)
SHERLOCK season 2: I hope Martin Freeman will not be replaced as Watson, since he'll be busy on the HOBBIT. The chemistry between Benedict Cumberbatch (Sherlock) and Martin Freeman (Watson) manages to upstage the recent film duo. Sizzling.