Other mistake: While Rick plays guitar and sings at a dance, the drummer behind him appears to be playing but never touches the drums or the cymbal with his drumsticks.
The Adventures of Ozzie & Harriet (1952)
1 mistake in Who Is Betty?
Starring: Harriet Hilliard, Ricky Nelson, David Nelson, Ozzie Nelson
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.