This is the final episode with Melvin (Slappy White).
When Fred is working his crossword puzzle, he asks Lamont for a 6-letter word for a TV show starring William Conrad. The answer, which is never given, is "Cannon."
The answer to the crossword puzzle Fred is working on when he asks Melvin what was Perry Mason's secretary's last name was, is "Street."
This episode is referenced in the video game "Wasteland 2" (2014). You find a vhs tape with a hand-scrawled text "Sanford & Son, Season 2, Episode 8"