The first broadcast appearance of Dino, the Flintstones' pet dinosaur, outside of the original first-season opening title and end credits sequences (which show a blue-and-green Dino curled up next to Fred's chair).
The Flintstones' Bedrock street address is shown as 201 Cobblestone Lane.
Barney (voiced by Mel Blanc) originally spoke with a higher-pitched, nasal-toned voice. However, for most of the show's run, he spoke in a deeper tone. Both tones appear in the episode, "No help wanted"; as Fred and Barney debate about Barney repossessing Fred's TV because he owes payments on it, Barney hides in Fred's TV. When Fred turns it on, Barney talks in the deeper voice, but goes back to the nasal quality as Fred tries shaking him out.
The Gravel Beach Golf Course is a spoof of the renowned Pebble Beach Golf Links, a public golf course on the California coast that regularly hosts the PGA Tour.
Though Fred's address is "201 Cobblestone Lane," 13 weeks later, in The Big Bank Robbery (1961) it's given as "345 Stone Cave Road."