On the original version of Card Sharks (the actual original version, not the classic revival from the 80s), during the bonus round (Money Cards), someone actually had four consecutive cards of the same value. I think it was a mid card, so the contestant survived. Cards off the same value counted against the player in the 70s, whereas in the 80s it was a push. No win, no loss, but no do-overs either.
On that note, cards of the same value would be the Card Sharks equivalent of a "Lose A Turn" that WoF has. While you'd be bailed out (or robbed from a big win with an ace, deuce or King) in the end game, not so much in the main game. Unless McHale, Mullen, and company changed the rules, that would be the case in the current version. It sucks; though I don't think I would say "Another six" as opposed to "higher-lower" in the game. I've never seen anyone do it (definitely can't recall it). I actually asked a long time ago about that; not that anyone would do it on television, it isn't allowed I was told. I should be a re-do; that I agree. Maybe for the final run to determine a champion, but not before that