The Bob Newhart Show
The Longest Good-Bye (4x1)
:
Bob's old school friend Murdock is in town for a day to sell a complex giveaway item to a Chicago cereal company. Bob invites him to stay overnight at his home. The brief encounter stretches out to a week when Murdock can't make his business connections. He gradually takes over Bob's car, clothing, and most of his home life.