Hmm- TV show seasons on DVD- I've got quite a few.
And right off the bat I will have to mention MacGyver and Full House- I did have the whole series for the former and a good few for the latter, but wound up selling them a while back. Whenever I have the money to spare, I'll probably get them again in the complete series sets. (But I honestly have seen virtually every episode in any case, but still love watching them.
And I still have various episodes taped on VHS- some from original ABC airings.)
The Muppet Show Seasons 1-3 (of course!)
(And the associated Muppet movies and specials on either VHS or DVD of course.)
Sesame Street (Old School Volumes 1 and 2, 40 Years of Sunny Days, various other specials [Big Bird Goes to China, Big Bird Goes to Japan, Christmas Eve on Sesame Street, A Sesame Street Chrismtas Carol, Elmo's Christmas Countdown], and numerous VHS tapes [Elmo Saves Christmas, Don't Eat the Pictures: Sesame Street at the Metropolitan Museum of Art, many of the new material/classic clips tapes- i.e. Learn About Numbers, Learn About Letters, etc.])
Fraggle Rock (Seasons 1-5 or however you want to count it- all the seasons individually)
Fraggle Rock (complete animated series)
Garfield and Friends (Seasons 4 and 5 because I found them really cheap at Target one day- maybe I'll eventually get the rest of the series)
Garbage Pail Kids (complete series- the cartoon really isn't nearly as bad as some claim- I grew up watching this as a kid, so there's some nostalgia there. lol)
Teenage Mutant Ninja Turtles (1980s series- Seasons 1-8 -really hope Seasons 9 and 10 get released soon to finish this series. And I'd love to get the "Turtles Forever" special on DVD too.)
Chip 'N' Dale Rescue Rangers (I have one disc of the first volume on DVD because I randomly found it very cheaply at a thrift store- but as far as Disney cartoons go, I have this one and DuckTales, Darkwing Duck, and Talespin on various VHS tapes as well. And Gummi Bears and others taped off of TV and put on CD.)
Who's The Boss? (Season 1- would love to get the rest if they were ever released)
Growing Pains (Season 1- would love to get the rest if they were ever released)
Perfect Strangers (Seasons 1 and 2- would love to get the rest if they get released)
Family Ties (Seasons 1-5 - oh they better release the last 2 seasons! I love this show!)
Diff'rent Strokes (Seasons 1 and 2. I'd love to get the rest of this series if it ever got released.)
Welcome Back Kotter (Season 1 - would love to get the rest of the series if it got released.)
WKRP in Cincinnatti (Season 1- would love to get the rest of the series if it got released.)
Charles in Charge (Seasons 1-5 and that's the complete series -yeah! I love this show.)
Happy Days (Seasons 1-2 ..whenever I can afford it, I'd like to get Seasons 3 and 4. And the rest of the series whenver it's released.)
Saved By the Bell (Seasons 1-5)
Saved By the Bell: The College Years (the complete series)
Saved By the Bell: The New Class (Seasons 1-7)
[Now if we could just get Disney to release "Good Morning, Miss Bliss" with the original pilot- I've mainly got all that taped from TV at this point.]
Knight Rider (Seasons 1-4 which is the whole series)
Adventures of Superman (live action '50s classic! Seasons 1-6, i.e. the whole series)
Superboy (Season 1- would really love to see the other seasons released)
The Flash (complete series for this great 1990s live action show)
Wonder Woman (Seasons 1-3, i.e. the complete series- classic live action '70s DC action)
The Incredible Hulk (Season 1- would love to get Seasons 2-5 when I can afford it. I do have the TV-movies on DVD though. -classic live action '70s Marvel action.)
Lois and Clark: The New Adventures of Superman (Seasons 1-4 and that makes the whole series)
While I'm naming superhero shows, I also have all the episode of The Amazing Spider-Man (the live action '70s US show) taped from TV and official VHS releases and such on CD somewhere.
Really would love to have this officially on DVD.
I also have the whole series of Automan on VHS, taped from TV. Incidentally, I've got Battlestar Galactica (the '70s original) and Galactica 1980 taped from SCI-FI airings too. Maybe one day I'll get the actual DVD releases when I can afford them.
The Hardy Boys/Nancy Drew Mysteries (classic live action '70s show- Seasons 1 and 2- I really want Season 3 to get released so I can complete this series)
The Hardy Boys ('90s show- complete series)
Nancy Drew ('90s show- complete series)
The Mickey Mouse Club (The Hardy Boys- "The Mystery of the Applegate Treasure" complete story arc. Would really love to have the other Hardy Boys serial- "The Mystery of Ghost Farm"- get released.)
And most recently finally got ALF - the complete 4 seasons of the live action show (I've got the DVD releases for both of the cartoons too- wish those would get released in their entirety though.) And I only finally got ALF on DVD because I found them all for a really good cheap price. I'm still upset though because most all the episodes are edited and I'd really much rather have an uncut version of the episodes. (Don't know if I want to try to invest in the German releases though- but those do seem to be much more intact for the most part.)
I think that's about all of them for now, various episodes of various shows on VHS releases notwithstanding.