Saw a similar thread in the NBA forum and it brought out some interesting facts and links so I thought I'd get it started here too.
For me... I'd have to say it is one of two games... I can't quite decide.
Either Game 6 of the 1992 NLCS... where Sid Bream slides safely against the Pirates... See it here
Game 6 of the 1995 World Series... Braves win... See it here