Sometimes musical theatre can show up in the most unlikely places. Last night on the ABC sitcom “Suburgatory” (which stars Broadway and Manhattan Theatre Club vet Jeremy Sisto), terminally bored teen brat Dalia Royce (played by scene stealer Carly Chaiken) sang Sondheim’s “Send in the Clowns” at a funeral. We recommend watching this even if you’ve never seen the show. “Suburgatory” airs Wednesday nights at 9:30/8:30C on ABC.