I think Grey's Anatomy has jumped the shark. What's the deal with the ongoing Izzie and dead Denny storyline? Can't the writers find enough dramatic content in a hospital, complex family, friend and lover relationships? Do they have to keep bringing back a character they killed off? Really?
My opinion may not be universally held (see this post from Daytime Confidential). Hey, I can handle shows with supernatural storylines that are beyond the scope of normal, conventional beliefs. I like the show True Blood for example, with it's vampires and people who can hear people's thoughts or shape shifters, and Life On Mars and its time-traveling cop. But I want to know I'm expected to suspend disbelieve from the outset based on the plot.
I'm not saying I'm completely done watching Grey's Anatomy, but my loyalty to any network TV show is tenuous at best, given writers' strikes and odd-ball, on-again, off-again schedules, I can find something else to do with my time in any hour time slot -- like watching old Happy Days reruns.