I remember a little about it. I "think" that part of the game was called "Face Lifters".
In addition to each number having a prize (except that two had 1/2 of a larger prize), a photo of a person's face was hidden behind nine curved pieces (I think the higher the number, the more it would identify). When someone made a good roll, they got a guess. When someone made a bad roll, the other player got a guess, then revealed a piece, took another guess, revealed another piece, took yet another guess, and so on, until they got it right or the entire face was revealed. I think that, in addition to winning the prizes on their side of the board, the winner also got all of the unrevealed prizes; I know this is true if it was won after a bad roll. If nobody got it right after the entire face was revealed, Alex would ask questions about the person until someone buzzed in.
The one person I remember nobody getting: Alec Guinness - presumably, this was before Star Wars came out.