In what Cheers episode was it reveiled that Norm's first name is Hillary?

Answer 1

Hillary Norman "Norm" Peterson was a character on the American television show Cheers, portrayed by George Wendt. Norm's real first name was revealed to be Hillary, named after his grandfather.

Norm enters the show as an accountant, though later becomes unemployed and eventually a housepainter,,,but the episode deludes me...