A search for Stan Musial produces a Universal International newsreel from 1955 in which Musial hits the game-winning home run in the All-Star Game on what looks like a beautiful afternoon in Milwaukee. The narration is done by Ed Herlihy, who uses phrases like "junior loop" and "circuit clout" without the archness they would carry today. You can find highlights of a 1975 football game between Notre Dame and North Carolina in which Joe Montana comes off the bench to lead the Irish to victory. A highlight reel of the Cubs' 1969 season, with Jack Brickhouse saying, "Hey, hey" a lot. The Flyers winning Game 6 of the Stanley Cup finals in 1987. I don't doubt that every soccer goal ever scored can be found there. (For a current favorite, search for Paul Robinson and England.)
I could go on, but I've got things to do. There's a guy who appears to be in the process of posting, half an inning at a time, the entirety of Game 5 of the 1981 NLCS between the Expos and Dodgers. Isn't that worth $1.65 billion?