I wouldn't say that I find the list so surprising or biased, although I've never seen most of those shows, so I couldn't tell you if they were good or not. Most of them were frequently things I'd heard of and things that apparently got good ratings/reviews, but I've never actually watched. I will say that of the two I've actually watched (30 Rock and Veronica Mars), I was surprised at some of their "best episode" picks. Well, mostly for VM, not 30 Rock. I guess my favourite episodes often tend not to be the best ones.

(I have no helpful nominations, aside from those two. I tried to think about it, but concluded that I mostly watch TV that started out good and subsequently got much worse.)