I have quite a few that I now own on dvd.
Buffy the Vampire Slayer
Angel
Hercules
Xena (actually I don't have this one but I'm still trying to get a good deal on EBay)
Lois & Clark: The New Adventures of Superman
Smallville
Firefly
Tru Calling
Dark Angel
Charmed
Heroes
Terminator: The Sarah Connor Chronicles
The Twilight Zone
Lost in Space
Kolchak the Night Stalker
The Addams Family
HBO's Oz
The Adventures of Superman
Batman 1960's
Dukes of Hazzard
Wonder Woman
The Green Hornet
Dallas
Seinfeld
Friday the 13th the Series
Freddy's Nightmares