Back in the day early 1970s around '71/'72 Mattel released a wonderful electronic audio toy. The Portable Instant Replay Record Player. The hand held audio device used batteries (1 D cell) and played these little 2.5" records. The player came with 4 discs to start your collection off, then they sold sets of 4 discs of football, baseball, basketball, racing and mixed sports. I forget if Hockey was included or not. The little button on the side basically was just a play/eject button, it might of had a fast forward but I think it was just play/stop/eject. Every once in a while Ebay will have some of the discs available and sometimes the players.
Instant Replay Black Disc back.
Back in the day my brother and I had about two dozen of the discs or so. There were many players I recall knowing about because I had this "toy". Over the years the discs were lost to time, or rather the "utility room" in our basement. Many of the discs sell for between $10-$30 or more sometimes you can find lots of several of the discs for a better price.
Anyway my rebuilt collection of the discs (useless as audio records unless I can find a working player for a decent price) are shown below. The Frank Robinson disc I got for $15.00 at my local card shop and the Sonny Jurgensen I got for $6.99 (+$2.00 postage) from Ebay.
The Ebay seller sent as a bonus an unopened pack of 1991 Upper Deck The Quarterback's Challenge cards distributed by Domino's Pizza. I'm debating if I should open the pack or not.