All right, I couldn't resist creating this counterpart to the other "alternate realities" thread.
Depictions of game shows within alternate-reality fiction. I can only think of two off the top of my head, both in relatively recent streaming TV series:
1. "The Man in the High Castle" (in which the Axis wins World War II and control of the U.S. is split between Germany and Japan) -- a panel show called "Guess My Game," which appears to be extremely similar to "What's My Line?", but is presumably not a Goodson-Todman production. It's broadcast in color as early as 1962.
2. "For All Mankind" (in which the Soviet Union beats the U.S. to a manned moon landing, and the space race between the two powers continues indefinitely) -- the "Jeopardy!" revival premieres a year earlier than in our timeline, in 1983, but appears to be exactly the same.