Schoolhouse Rock! "Interjections!" (1974) Original Audio

Schoolhouse Rock! is a series of musical, educational inserts created for broadcast during ABC's daytime programming. Beginning with its first incarnation, Multiplication Rock, debuting in 1973, the series proved to be successful enough for a spinoff, Grammar Rock, broadcasting the same year, lasting into 1975. The first two seasons aired with their own opening and closing sequences, as well as animated sponsor tags. Subsequent seasons, as well as home entertainment releases, come with a generic "Schoolhouse Rock" opening and closing.

An early version of Interjections!, a segment from the Grammar Rock series, featured a slightly different soundtrack, in which most of the sound effects were not yet implemented, and characters who would later be dubbed by child actors were voiced by Bob Dorough. A video of this version, which also featured the original Grammar Rock opening and closing, was once uploaded to YouTube by NantoVision2 on January 9, 2008, sourced from a 16mm print created for distribution and use in libraries and schools. It has disappeared online since NantoVision2's channel closed.