Two of my three I base because of what they more or less spawned. One because of personal fave.
In no particular order:
1) Double Dare (Nick version) -- This show pretty much introduced messy in-studio stunts that also spawned other similar in-studio games, like Legends of the Hidden Temple, (College) Fun House, etc...
2) Remote Control (MTV) ‐‐ One of the first, if not the first, modern day genre-specific quizzer that dared to go beyond sports or movie subjects. Remote Control spawned Couch Potatoes, and may have inspired TV Land's Ultimate Fan search, which was also all about television.
3) Rodeo Drive -- Jay Wolpert's first game show foray into cable TV. Like many of Jay's ideas, the show was a bit convoluted and had some glaring faults, it took elements from Canada's Talk About, Sale of the Century's Fame Game, and a touch of the Whew! Gauntlet. The show also was the first for Burton Richardson in the announcer role.
It was nice to see Jay rebound for a modest run of cable shows after the demise of Blackout. And Rodeo was not a bad show to watch and play along with despite it's flaws.
Also, Rodeo Drive was one of the only cable game shows with returning contestants!