George Clooney is coming to “Downton Abbey” … sort of. Clooney will appear in a sketch for ITV’s Text Santa fundraiser, which will air later this month. But in the meantime, fans can check out a photo of him on set and a brief sneak peek of the sketch. Throughout the show’s seasons, many a “Downton Abbey” gentleman have looked dapper in a three-piece suit, but, if the teaser’s any indication, Clooney might just take the cake.