

The scene where all of those underdeveloped people come on board the Enterprise with their animals and one woman is shouting throughout the whole deck. Patrick Stewart lost it at this point, turns away from the camera and starts to laugh uncontrollably. But they kept the camera rolling and the scene turned out great!
Edit: It’s S02E18 “Up the Long Ladder”
Yes that’s the one, with the drunk guy. The episode is so over the top, I love it.