What TV shows had disco episodes?

Charlies Angels http://www.imdb.com/title/tt0539214/

Edge of Night had a whole storyline centered around a disco that had a video screen with moving trippy images synced to the music, where a group of terrorists operating behind the scenes and trying to take over the whole community were putting subliminal messages in the images on the screen and brainwashing the customers into voting a certain way, killing people, getting into violent fights, etc. Pretty sure this was in the early 80s so not really in the true disco era, but the place was called the "Video Disco" and in addiction to the video screen it did have the traditional mirrored rotating ball.