It is revealed that Fred's boss, Mr. Nate Slate is actually Barney's uncle. But this was never mentioned again in any subsequent episode.
ABC Originally Broadcast This Episode In Black And White
Last episode during the show's original run to use both the original opening and closing, which were resurrected by Ted Turner in the 1990's and aired on the Cartoon Network. As of 2023, though Me-TV initially used the 1990's prints of the episodes from the first two seasons and the first two episodes of Season 3 with the original opening and closing, it has since replaced them with Warner Brothers' newest prints of these episodes with the opening that was used from midway in Season 4 until the end of the series, and the closing that were used for Season 4, as Bea Benadaret was not credited that season.