Every outfit worn by Rose, almost without exception, has a rose or pattern of roses.
Berta wasn't originally supposed to be a recurring character, but the late Conchata Ferrell proved to be such a hit with the audience that she became a regular cast member at the start of season two.
Alan's alimony payment is $3,875.32 per month.
Charlie Sheen does not play the piano on the show. He is dubbed by composer Grant Geissman, who plays offstage while Sheen fakes it on a dead keyboard. With composer Dennis C. Brown, Geissman also writes the music for the jingles Sheen's character creates.
Charlie Sheen became the highest paid actor on a comedy television show in 2008 with a reported $300,000 paid per episode for this show. By 2011, that had risen to $1,800,000.