The title refers to Uncle Charlie's previous profession as a merchant seaman and the seven seas that he had sailed throughout the world. The tradition sevens seas are the Mediterranean Sea, the Adriatic Sea, the Black Sea, the Red Sea, the Arabian Sea, the Persian Gulf and the Caspian Sea.
Lillian Bronson does appear as Mrs. Benson between 8:08 and 10:00. The scene depicts Charley having dinner at the Benson house with Verna and her mother. It appears that this scene is cut from several versions of the show.
William Demarest was 25 years older than actress Jan Clayton.
Lillian Bronson is credited as Mrs Benson but appears nowhere in the episode.
First time seeing Uncle Charlie's room that use to be Bub's. Bub had pictures of the original 3 sons (Mike, Robbie and Chip). Charlie's room the picture of Mike is missing and Ernie is there with Robbie and Chip.