March 31st
- 1933 – Murders in the Zoo went to theaters.
- 1937 – Homus Primus first aired on the radio.
- 1943 – Christopher Walken was born.
- 1960 – Cynthia Asquith died, age 72.
- 1961 – Long Distance Call first aired on television.
- 1966 – Herman, the Tire Kicker first aired on television.
- 1967 – Dark Shadows, Episode 200 first aired on television.
- 1971 – Nick Cohen was born.
- 1997 – Never Kill a Boy on the First Date first aired on television.