From the creators of Airplane!, the Hot Shots! movies, and Top Secret!, Police Squad! began as the brain-child of Jim Abrahams, David Zucker and Jerry Zucker. The series would later spawn three follow-up movies under the new Naked Gun titles. The series was set up to spoof the Quinn Martin Productions' police dramas of the 1960s and 1970s, hence the use of "In Color" by the narrator. The show's main staple of entertainment came from sight gags (such as a tow truck being a truck in the shape of a big toe) and misunderstandings in dialogue, mostly from people taking things extremely literally. Several great routines came from these misunderstandings that left characters in the scene very confused, but left the audience with loads of humor. Though critically acclaimed, it never did well in the ratings.