GSM I believe was for Game Show Marathon, a 2006 heptathlon of celeb-played shows for home players. PYL was one of the shows that were a part of the set of 7...GSM happened just months after Peter Tomarken's passing, and a In Memory Of was in play for that portion...
I always figured the "hiccup" in the board sounds were meant as an aid to the audio person, so they would know when the cart was cued up to the beginning of the sound, yet was seamless enough to be used indefinitely should it be required.
LocalH This was the second of three Big Board sounds illustrated here-my fave of the three...The third one was higher pitched and always sounded glitchy...