Cheers: In "To All the Girls I've Loved Before", Frasier quotes from "Everybody Have Fun Tonight" as he enters his bachelor party.
Frasier: I was listening to a rock 'n' roll station on my way over here, you know to put me in the mood. There was a passage in one of those trifle songs, that I feel, well, is the keynote of this evening: "Everybody have fun tonight. Everybody Wang Chung tonight."
That '70s Show: In "It's A Wonderful Life", Eric and his Guardian Angel Flash Forward to his 10-year high school reunion during the 1980s, where we see Fez as a one-man-band singing "Everybody Have Fun Tonight", sporting the most stereotypical '80s Hair and fashion.
Veronica Mars: In the first season, there's an 80's dance that gets interrupted by a very drunk Logan, who yells at everybody to "Wang Chung tonight, or I'll kick your ass!"