I’ve not regularly watched these in decades especially Wheel. The show has changed so much since last I paid attention. Speed rounds, crossword puzzles, other gimmicks to keep it fresh.
A former co-worker said that her (adult) daughter was on
Wheel of Fortune, and the contestants were told that if
for any reason the episode didn't air, they wouldn't actually get any of the prizes that they won on the show. The prizes are essentially paid for by the advertising, so if they aren't advertised on the show
when broadcast, they wouldn't be paid for.