Lex Luger bodyslams Yokozuna at Summerslam-
At 8 years of age, I didn't think Lex Luger was a terrible wrestler, or realize that the WWE was priming him to be the next Hulk Hogan. In retrospect, I am ashammed I marked out the way I did back then.
123 Kid steals $10,000-
X-pac was a decent mid-card face, and him out-cunning Razor Ramon was classic.
SCSA 96 vignettes on Bret Hart-
Awesome. SCSA's program with Bret Hart catapulated his career, which eventually led to the Attitude Era.
Bret Hart v. Owen Hart @ WM10-
Great match which told a story through wrestling. I only wish I can mark out to wrestling matches now the way I did back when I saw this match.
There are more mark-out moments, but these were the first to come to mind.
List your own.