"Rockin' Charmin' Harmin" was a popular disc jockey for Bloom County's classic rock radio station, KRNA. Twice he embarrassed Binkley over the air by exposing Binkley's need for bedwetting and nose-picking self-help literature. Though his voice was heard over the radio in the strip, he was never seen in person, and remained an unseen character. The character's name came from "Charmin'" Jeff Harmon, a popular afternoon DJ at KRNA-FM. KRNA was an actual rock station located in Iowa City, Iowa, where Berke Breathed lived while writing the strip. The station was later bought out by Cumulus Media and moved to Cedar Rapids in 1999.
Read more about this topic: Minor Characters In Bloom County