Mary Tyler Moore1970

[there is a party at Mary's. Mary has suggested playing a game where one person says a word and the next person thinks of a word that begins with the last letter of the word they heard]

Lou Grant:
Does this game go on forever or does it have an end?

Mary Richards:
It ends when a person can't think of a word.

Lou Grant:
Oh, I'll start. (Lou turns to Ted Baxter.) Box! (Ted cannot think of a word and says nothing.) Game's over.