My brother collects Futurama, my sister has all Buffy: The Vampire Slayer, Sex and the City, Charmed, and Taken. While I'm in the process of collecting The X-Files series with both movies as well.
Arrested Development Batman: The Animated Series Dawson's Creek Everybody Loves Raymond Family Guy My So-Called Life Nip/Tuck The O.C. Tiny Toon Adventures (lol) The Tudors
I used to have the complete series of Angel, but I sold like, 2 seasons, to get money to buy pot a few years ago.
On DVD: Family Guy Robot Chicken (Incomplete, I need like one more) South Park (Incomplete) On PC: Stargate SG-1 Stargate: Atlantis Futurama American Dad
On dvd: House Scrubs The Office Cowboy Bebop Outlaw Star Tin Man On PC: Doctor Who Torchwood Skins Band of Brothers
On DVD: Friends (All seasons) Scrubs (All seasons) South Park (First 5 seasons) On PC: Dexter South Park (Season 6-Present) Heroes Death Note
Friends. I watch an episode every day, and when all seasons are finished, I start at season 1 again lol.
DVD: Friends (all seasons) Twin Peaks (both season, missing the movie) Lost (just season one, they're ridiculously expensive...) That 70's Show (season one and two) Harddrive: Gilmore Girls (most seasons) Scrubs The Office Heroes Arrested Developement
Lost Friends House Grey's Anatomy CSI: Crime Scene Investigation Desperate Housewives (season 1, 2 and 3)
DVD Supernatural Bones Firefly Dads Army Kingdom Hospital House Hard Drive Fringe Dr. Who Torchwood CSI NCIS Stargate SG-1 Ergo Proxy Fullmetal Alchemist
DVD as of now anyway.. Dragonball Dragonball Z Dragonball GT Friends Hard Drive The O.C. and..a heaping load of HK produced TVB dramas.
LOST, CSI: Miami, CSI: Crime Scene Investigation, Bones; I'd like to collect Buffy, but it's so expensive to buy series in English here. I have one season of Gossip Girl and Prison Break each. Don't think I'll collect them, though.
I don't watch much TV, but I am a fan of mostly all the HBO Shows. I got all the DVDs for The Sopranos, Da Ali G Show, Entourage, and The Wire.