https://www.youtube.com/watch?v=37s2EAvTyS0
"M*A*S*H" Dear Mildred (1975)
Colonel Potter writes his anniversary letter to his wife. Meanwhile, Frank and Margaret try to find the perfect anniversary gift, only to be outdone by Radar. ....
When the guy shows them an example of his work he hands them a board, saying, "It used to be round." When Frank says, "That's a two by four," the guy says ...