Jeopardy
Wheel of Fortune
Who Wants to be a Millionaire
The Price is Right
Kinda want to say something older, like maybe Password or To Tell The Truth, but dunno if any were dominant back in the day. Deal or no Deal gets an HM, I guess, but I really don't wanna include it; it's technically a game show, but functions more as reality TV since the game part is mostly luck and the real focus is on people.
"so is my word...It will not return to me empty, but will accomplish what I desire and achieve the purpose for which I sent it." - Isaiah 55:11