Hopalong Cassidy is a Western Adventure Drama, which was broadcast from 1948 until December 1952. It became a real success in 1950 and starred William Boyd as "Hoppy" the hero western detective and Andy Clyde as California Carlson, his friend and sidekick. "With action and suspense out of the old west comes the most famous hero of them all, Hopalong Cassidy. The jingle of the silver spurs heralds that fabulous figure of the early West, Hopalong Cassidy. The same Hoppy you've cheered in motion pictures and the same California you've laughed at a million times in your local theatre.
Old time radio drama exists because of hobbyists and radio personnel, who rescued episodes of shows on transcription tapes and on glass or vinyl records. Some radio programs are presumed lost, primarily those from the 1930s – few programs from the 1920s were recorded