I recall reading that in 1987, there was going to be a syndicated Trivial Pursuit, produced by Jay Wolpert. Then after being declared a "Firm go," there was something about the pilot Wolpert, or the distributors did not like, so they decided to hold off until 1988. It didn't get on the air.
Around that same time, Entertainment Tonight reported that NBC daytime was going to premiere the Richard Dawson hosted You Bet Your Life. A few weeks later, after the pilot was done, I'd read in a magazine article, that NBC didn't find it as funny and full of comedy as they wanted, and scrapped the project entirely.