What I mean by rewrites is, The Bob Barker Studio is a generally difficult environment to hear things being explained.
Due to audience noise and applause, yes it is, very much so.
The key to playing all 6 games successfully in a given episode is listening to clues that may help the contestant win his or her pricing game, not listening very often has cost entire games for contestants and the game would be over for him or her.
Personally, I'd be hesitant to call the prize descriptions "clues" these days--most of them are so bland they don't really tell the player enough to be useful. Car descriptions are about the only exception; they can at least still be counted on to give you all the details.
A script could be rewritten live, or a different version of a script could be presented for the home audience.
That's what I thought you were getting at, and I can't see this as anything but an S&P issue (except in the case of the discovery of a factual error of course). Even in the case of a factual error, it seems like they'd simply present the show as is, and make an announcement during the credits about it, describing the mistake and that they'd given the prize to the player.
I'm not asserting that a prize copy could have the description manipulated because its a violation of standards and practices, many other game shows have gone through S&P violations, or have been involved in scandals aside from The Price Is Right.
Except that if you say "a script could be rewritten" or "a different version of a script could be presented for the home audience," that still says the prize copy is different. I really don't understand this--either prize copy is being changed or it's not. (Either that or I'm misunderstanding your use of "script" here.)
What I am asserting is a lot can be presented after the fact, thus the requirement for a lot to be repeated for us the home audience.
So, just making sure I'm understanding your meaning, you're suggesting that something could be re-shot later (be it a pickup, a reveal, etc.) due to the initial take during the taping not being spot-on. If so, then yes, not only is that possible, it's actually becoming an all-too-regular feature of tapings. This results in extra studio rental time, and I have a sneaking suspicion that that's hurting the prize budget.