Tony Renzoni was a teenager in Waterbury in early 1964 when his older brother called out: "Hey, turn on WDRC, they're going to play the song by that new group, The Beatles. I heard it's great!" When Renzoni switched on his transistor radio, the disc jockey played "I Want to Hold Your Hand." Renzoni, in the introduction to his new book " Rock 'N' Roll Radio Connecticut: Magic Moments & Unforgettable Disc Jockeys," which he published in January, writes: "It was unlike anything I had heard before.