Azrael wroteGrey's Anatomy has got to be one of the most overrated shows on TV. nothing happens.
Crap like that gets renewed year after year while Rome/Deadwood got cut short and Rubicon is 50/50 for a second season.
Heck, every year but the 4th, even The Wire was in danger of cancellation, and after initially promising 16 eps for the final season, HBO gave us 10 instead.
I can't blame HBO/AMC/Showtime for actually trying good programing and then having to cut it though; the fault resides with people too busy watching Dancing with the Stars to give the last great show on tv a shot.