The term 'Arthur in Sitcoms' refers to the character Arthur Spooner, played by actor Jerry Stiller, who appeared in the American sitcoms The King of Queens and Seinfeld. In The King of Queens, Arthur is the father of lead character Doug Heffernan, while in Seinfeld he is the father of George Costanza's fiancee Susan Ross. The crossword solution for this term is BEA, which stands for Beatrice, Arthur's wife in both shows.