Complex sentence: The TV show was based on the 1949-50 radio serial, "The Adventures of Champion", which told of young Ricky West (rather than Ricky North), who was raised on a ranch by his adoptive Uncle Smoky.
Split into simpler sentences: The TV show used characters similar to those in the 1949-50 radio serial, "The Adventures of Champion". The serial told of young Ricky West (rather than Ricky North), who was raised on a ranch by his adoptive Uncle Smoky.