I Love Lucy "Be A Pal" was originally aired Season 1 as Episode 2 on October 22nd, 1951.
Lucy thinks Ricky is growing tired of her, so she consults Dr. Humphrey's book How to Keep the Honeymoon from Ending to get ideas about how to freshen up her marriage. She tries making herself glamorous at the breakfast table and playing poker with Ricky and his friends (to share in his interests- the "Be a Pal" system). Her end attempt is to mother and "baby" Ricky, the last-ditch effort the book suggests. Lucy makes the whole living room feel like Ricky's childhood in Cuba and she dresses up like Carmen Miranda. But she learns that Ricky is happy in America with Lucy, just the way things are.