Watch: George Clooney makes an appearance on 'Downton Abbey'

Move over, Amal. George Clooney just kissed the hand of Maggie Smith. She fainted, of course.That's the best part of this holiday "Downton Abbey" sketch, a commercial for a charity telethon called "Text Santa." With nearly all the cast in tow, "Downton" makes fun of itself, setting up a bit in which Lord Grantham (Hugh Bonneville) has a Christmas-Carol-esque dream in which an angel shows him what his estate would be like if he did not exist.