Complex sentence: It returned to the airwaves in February 1962; after it switched its production from live presentation to being taped, it focused on Anne dealing with life on her own while Roy was trapped behind enemy lines.
Split into simpler sentences: It returned to the airwaves in February 1962, and switched its production from live presentation to being pre-recorded. The newly taped season saw Anne dealing with life on her own while Roy was trapped behind enemy lines.