The Adventures of Ozzie and Harriet is an American television sitcom that aired on ABC from October 3, 1952, to April 23, 1966, and starred the real-life Nelson family. After a long run on radio, the show was brought to television, where it continued its success, initially running simultaneously on radio and TV. In terms of seasons, it was the longest running live-action sitcom in U.S. television history until It's Always Sunny in Philadelphia surpassed it on December 1, 2021 (though it still retains the record in terms of total episodes produced: 435). The series starred the entertainment duo of Ozzie Nelson and his wife, singer Harriet Nelson, and their sons, David and Ricky. Don DeFore had a recurring role as the Nelsons' neighbor "Thorny".