The Donna Reed Show (1958)

Season 3: Episode 8

Alex is cited for his research in a Medical Journal article that he tries to read throughout the whole episode, but he's constantly interrupted. Mary gives up boys when Roger and Elroy let a coin toss decide which one will play tennis with her. She decides to become a scientist. Boys are back in her life when she discovers the new boy Stanley mowing their yard and conducting a science project at the same time.