Austin Powers: International Man of Mystery: While Austin brings himself up to speed on what's happened in the 30 years he was frozen, he tells Vanessa that he didn't expect to find out that Liberace was gay.
In I Think I Love You, Carrie wonders if David Cassidy will turn out to be "a sort of pickled Liberace." Petra complains that pickled Liberace is all she's going to be able to think about when she meets him.
Bloom County: Steve Dallas's mother idolizes Liberace. When she complains that Steve will die "like Liberace", "without ever finding the right woman", Steve angrily informs her that Liberace was gay. This gives her a minor Heroic BSoD, followed by her realizing all of the male celebrities she likes are gay.
One The Far Side comic has Liberace walk into a high-school shop class bedecked in full regalia, with the caption stating that before he made it big, he was "Mr. Liberace", the shop teacher.
In JonTron's video "Home Alone Games", he notices that in the SNES game, every item you deposit into the safe comes out as a golden candelabra, and wonders if Liberace was the executive producer.
Batman: The Brave and the Bold: The Music Meister wears multiple different costumes paying homage to varying styles, genres, eras, and performers of music — one of which is a clear allusion to Liberace.
In The Three Little Bops, the narrator says that the piano playing pig is "Going like Liberace on the eighty-eights." The pig then says "I wish my brother George was here."
In Wideo Wabbit, Bugs Bunny impersonates Liberace, calling Elmer Fudd "George" and asking him to take his candelabra away, which happens to have lit TNT sticks instead of candles.
Bugs also imitates Liberace when playing piano in Hyde and Hare.
Walt Disney Presents: In "Music for Everybody", Ludwig Von Drake takes out his "99-piece instant symphony orchestra" made up of Bootle Beetles, including a piano player named Cucarachie.