Several others:
The Edge (Fox, 1992), a sketch comedy series starring Jennifer Aniston a couple years before "Friends" made her a household name
USA Today: The Television Show (syndicated, 1988-90)
Knights and Warriors (syndicated, 1992), a medieval American Gladiators ripoff
The Peter Marshall Variety Show (syndicated, 1976), which according to the E! True Hollywood Story about Hollywood Squares, featured a
22-piece orchestra! Its budget for the time and Peter's refusal to cut costs were perhaps why it lasted only a season.
That's My Line (CBS, 1980), Goodson-Todman's attempt to cash in on the That's Incredible/Real People craze and was one of the few non-game shows by them
Townsend Television (Fox, 1993), a sketch/variety show hosted by Robert Townsend
After Hours (syndicated, 1989), which was trying to be an offbeat version of Entertainment Tonight but failed
Allen Ludden's Gallery (syndicated, 1969), a talk show he was doing in between the CBS and ABC runs of Password
America (syndicated, 1986), an Hour Magazine ripoff hosted by Sarah Purcell (ironically, CBS owns both shows now)
The 1980-81 version of Let's Make A Deal (syndicated), which was done in Canada but got poor syndication clearance in the U.S.
Play The Percentages (syndicated, 1980)
Models Inc. (Fox, 1994)
New York News (CBS, 1995), which didn't help CBS pull out of then-last place...even with Mary Tyler Moore!
Public Morals (CBS, 1996), which lasted only one episode
She TV (ABC, 1994), featuring Jennifer Coolidge
Emily's Reasons Why Not (ABC, 2006), same as Public Morals despite the heavy touting for it and star Heather Graham (who would bounce back into the spotlight with The Hangover)
The Will (CBS, 2005), though the entire series would later air in New Zealand
And outside the U.S.:
Australia's Naughtiest Home Videos (Nine Network (Australia), 1992): Halfway into the show, Nine's owner Kerry Packer was incensed and got on the phone telling network master control to
"Get that (expletive) off the air!!!" This is what happened next. But in 2008, the special would finally be aired in its entirety.