New Year's Eve TV Episodes

• Friends S01E10 “The One with the Monkey” is vintage Friends. Everyone looks amazing and their NYE party is a huge mess
• Friends S05E11 “The One with All the Resolutions” is another iconic one, the one where Chandler can’t make fun of people and Ross wears leather pants
• Futurama S01E01 “Space Pilot 3000” is the one that started it all! Here’s to another crappy millenium
• 30 Rock S04E09 “Klaus and Greta” is classic 30 Rock, but it technically happens just after NYE! Features the now-cancelled James Franco
• Frasier S07E12 “RDWRER” is very heavy on the hijinks! It’s a romp

Seems Promising

• Mad Men S04E03 “The Good News” I don’t know what this one is either, is it a California NYE?

If you’re looking for more inspiration, Wikipedia has a fuller list, but it suffers from its own omissions.