A non-Price example, but it works: Only now that time constraints have finally caught up with the current version of Family Feud is there not always an explanation of the rules to Fast Money (and the forced exclamation of "twenty thousand dollars!" by the first player). For decades, though, there seemed to be the need to always explain the rules in full every episode (and let's not forget all the time with wasted applause and a music sting when returning from the commercial break before we even get to this point). Oftentimes on Dawson Feud, the beginning to Fast Money was a fade in from black with Dawson saying, "fifteen seconds, please". Ding, the clock would come up and, boom, Dawson would be into the first question.
Also outside of
TPIR: on
Tic Tac Dough w/Wink Martindale, it seemed that after a while, many of the players knew how to play the game (get three Xs or three Os in a row vertically, horizontally, or diagonally; outside boxes were $200 to the pot, and the center two-parters were worth $300), such that, even at the top of the show, Wink would turn the players' attention to the subjects at hand for the upcoming round, and dispense with the formal rules spiel (especially if a new player had just come in, and all that was left before close of business on the last show was some light banter).
He did, however, IIRC, pretty much every time the bonus game (Beat the Dragon) was played, still maintain the formal spiel (get $1000 or more, or get Tic and Tac, before hitting the Dragon, and getting Tic and Tac got the Dough [was an auto-win], outside of that one brief time in 1983 where one had to hit the grand right on the nose, and an excess meant you had to get Tic and Tac to win).