Sally Rogers was the first woman on an American television show to portray a solely independent woman. Before that, women were mostly cast as housewives.
Laura Petrie gives their address as 148 Bonnie Meadow Road.
According to Dick Van Dyke, viewers used to make bets during the opening credits on whether or not Rob would trip over the Ottoman.
Voted #13 on TV Guide's 50 Greatest TV Shows of All Time.
Humorous actress, Rose Marie and comedian-actor Morey Amsterdam were in 131 programs apiece (and did not appear in 27 shows apiece).
Bill Cosby was asked to perform for the cast and crew based on the recommendation of Carl Reiner's young son, Rob Reiner. Sheldon Leonard was so impressed that he cast Cosby in I Spy.
During filming for the weeks that the makers of Kent cigarettes sponsored the show, free cartons of Kent cigarettes were handed out by the company to the cast and crew. Mary Tyler Moore, then a heavy smoker but since quit, would take her cartons and the ones of non-smoking crew members and trade them in at a local store for cartons of her preferred brand.
For reasons that are unclear, six episodes from the second season have lapsed into the public domain. These are the six episodes: Never Name a Duck, Bank Book 6565696, Hustling the Hustler, The Night the Roof Fell In, A Man's Teeth Are Not His Own, and Give Me Your Walls.
Besides this show, composer Earle Hagen also wrote the theme songs for The Mod Squad, Gomer Pyle, U.S.M.C. and That Girl.
During Richard Deacon's first season as Mel Cooley, he was also finishing up the last season as Fred Rutherford on Leave It to Beaver.
Morey Amsterdam and Richard Deacon were actually close friends. According to Deacon, many of the best insults Buddy hurled at Mel were worked out when the two went out for drinks after work.
Carl Reiner and the other writers were very careful not to use any 1960s slang in the show's scripts. In fact, references to any time period or current events are very few and far between. Even The Beatles are never mentioned despite the fact that Beatlemania was at its peak while the show was in production. As a result, the show has not become dated over time and the episodes are still as fresh as they were when they were first aired.
In the series, Dick Van Dyke's brother Jerry Van Dyke played his brother "Stacey". Stacey was in fact the name of Dick's daughter, so this was undoubtedly done at his request.
According to Morey Amsterdam, the show was scheduled to return for the 1966-1967 season and was going to be seen in color for the first time. However, the plan was scrapped when Dick Van Dyke decided he had enough. This contradicts Carl Reiner, who is on record as saying the decision to end the series was his alone. In any event, Reiner made it clear that he would not be returning as producer after the fifth season, and the consensus opinion was that it would have been impossible to do the show without him.
The writers' office where Rob works is a recreation of the writers' bullpen from Your Show of Shows, where Carl Reiner worked as a writer. The character Rob is based on Reiner and the character Buddy Sorrell is based on then-television comedy writer Mel Brooks. The character of Alan Brady was based on Sid Caesar.