Can Your First Impression, Chain Letter 3 for the Money or It's Anybody's Guess be revived for low stakes?
Of the four, I could see 3 For The Money working best on GSN; a solid trivia game that I feel didn't get a fair shake in '75. If you want to keep the same-players-all-week angle, swap the car out for a trip and you're good to go.
3 For The Money would need a complete rules revamp, especially in the final 2-minute round when the clock stops every time the lead changes hands.
Maybe if there were three rounds - the first two are played like the first round on the original (one player at a time on one team against 1, 2, or 3 players on the other), but each team is "in control" for a round, and the third round is more or less a straightforward 3-on-3 buzz-in round.
Or, make the first two rounds more like what they did on
Genius Junior; two minutes - one player is asked a question; if correct, the next player on the team is asked the next question, but if incorrect, the next player has to try to answer the same question, and a question isn't changed until either answered correctly or all three players on the team miss.