Mine, in no particular order: Deadwood, Season 2; Freaks & Geeks; Arrested Development Season 1; Friday Night Lights, Season 1.
Update: The poll is live. I just put everything that was mentioned more than twice into the poll. Vote here, vote early, and vote
Annoying Update: Only four votes per person. If you vote for more than four things, I will delete your entry. If you get deleted, feel free to go back and vote for only four. Tara and Abby G, try again. Your Mount Rushmores had too many presidents.
Thoroughly annoying update: I accidentally typed "Office S2" as "Office S1." If you already voted and you want me to change something to "Office S2," let me know in the comments.