Sally Rogers (Rose Marie) teases Rob about his amateur sleuthing to learn whether he's going to have a surprise party by referring to him as "Sebastian", an almost incomprehensible reference to most viewers today. She is referring to the then-recent television series Checkmate (1960) that ran from 1960-1962, in which 'Sebastian Cabot' played a British criminologist who assisted the partners of a San Francisco detective agency.
When Laura pours to much coffee into Rob's cup at breakfast, he remarks that he doesn't want a cup and a half and that only works on television. That's a reference to a famous commercial for Maxwell House Instant Coffee in which the coffee continues to rise in a perfect cylinder above the rim of the cup, with the tag line "Get a cup and a half of flavor."