It's Garry Shandling's Christmas Show (1987) S2.E7
Garry experiences Christmas woes: his guests all leave his party early; and his mother gives him his father's watch for Christmas, but it goes missing.
George competes in a Historic House Tour contest. Leo and Ambrose separately and secretly spike the eggnog he made for it. He gets soused. Casey and Ted view their baby's sonogram.