The Lucy Show (1962)

Season 2: Episode 13

Viv's cousin comes to New York to play percussion in Manhattan. When he arrives at the house, he's a nervous wreck and Lucy tries to relax him by telling jokes, but gets the hicups from laughing. Lucy tries to cure him by hypnotizing him, but she puts him in a heavy sleep and he won't wake up. Lucy ends up playing in the symphony in his place and makes the conductor mad and she takes his place.