It really isn't all that impressive once you get past the "Nazis? Really?" part. There are far more hilarious episodes. Like the time when Sulu takes his shirt off and starts fencing around the Enterprise while Spock cries about his mom and Kirk talks about how the Enterprise is the only woman he'll ever love. That episode is called The Naked Time and is awesome for the title alone.

Sulu: I'll rescue you, fair maiden!
Uhura: Sorry, neither!
Uhura: *elbows Sulu in the stomach. Like a boss.*