In Nickelodeon’s “Big Time Rush,” four friends from Minnesota travel to Los Angeles to be molded into a boy band ... with the same cartoon cuts and noises and musical cues.

If 1976’s 2112 was the band’s fiery eureka moment, Hemispheres — Rush’s sixth LP ... a 1937 Raymond Scott theme used in Looney Tunes cartoons.) The audio on the set — a 2015 Abbey ...