Lenny's Inferno: Halloween 1980 (Video, 1980)
You can watch this Madison, Wisconsin's TV horror host here.
If you're confused about the mention of the sincerity of pumpkin patches, here's a history lesson for you.
Hobart and Cosmo: On the Tracks (Video, 1995)
You can watch it here.
Found via Everything is Terrible.
Miscellaneous Japanese TV Recordings (unknown years)
You can watch them here. (The videos that seem to have the same preview image are in fact different - the images are slightly different.)
Dreamworld TV Ads (Videos, 1985/1986/1988/1989/1991/1996)
Ads for the Australian theme park. You can watch them here.
Fun Song Factory (Videos, 1994-2004)
You can watch various episodes from the show's three incarnations here; the seven videos here are all of the original direct-to-VHS releases, these nine episodes are from the 1998 TV series, and these twelve episodes are from the show's 2004 incarnation; other episodes may also be present at the first link or this one.
Aliens in the Family (Videos, 1996)
The obscure short-lived Jim Henson Company sitcom. You can watch all of it, plus promos and retrospectives, here.
The Reppies - Two Episodes (Videos, 1998)
The Tampa, Florida local kid's TV show, later redubbed as a Christian series. You can watch two episodes of the dub here.