Beginning in the mid-1950s, rock music found a surprising home on mainstream television, including on programs hosted by Milton Berle, Steve Allen, and Ed Sullivan. Elvis, for example, appeared on all three shows. But it was the appearance of the Beatles on “The Ed Sullivan Show” in 1964 that changed the face of pop culture, leading to an explosion of televised rock, from prime-time variety shows like “Shindig” to the sitcom antics of “The Monkees.” Media historian Brian Rose presents a lively survey of how rock and television grew up together.