The Fall Guy - S1-E4
Character mistake: Thorny tells Ozzie that Clara Randolph is throwing a party. When Ozzie tells David and Ricky about that party, he calls her "Mary Randolph."
The Adventures of Ozzie & Harriet (1952)
1 character mistake in season 1
Starring: Harriet Hilliard, Ricky Nelson, David Nelson, Ozzie Nelson
Dave and the Teenager - S11-E17
Other mistake: When the Harris family moves into an apartment across the hall from David and June Nelson, their 14-year-old daughter, Betty, develops a crush on David. When David and June step out onto their outdoor patio, they see Betty watching them from her own patio. This could not be possible.
Trivia: In the later seasons, almost every scene taking place at the Dobson and Kelly law office or in the Emporium or other local business is preceded by the same clip of a downtown street showing "First Bank" and a passing bus.