Index Of/games Exe What Board Game Had A Red Sleeve That You Put Cards In To Read The Answers?

What board game had a red sleeve that you put cards in to read the answers? - index of/games exe

I think it was 80 or 90, like a quiz? I remember that might have been a lot of classes and the sleeves were a little bigger than a card index. I've just this type of food at Jack in the Box with mini-versions of the games when I was not a child (sure that appeals to the youth of today, but whatever) and I remember that you had this Decoder red! Please help!