The Lucy Show
Lucy Conducts the Symphony (2x13)
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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.