Complex sentence: The airplanes flown by King changed during the course of the TV series, but were still known as the "Songbird", the 1955 model type number of the later version Cessna was stated as 310B and was prominently displayed during the closing titles.
Split into simpler sentences: The airplanes flown by King changed during the course of the TV series, but were still known as the "Songbird". The later 1955 version aircraft's make and model type number was clearly depicted as a "Cessna 310B" and was prominently displayed during the closing titles.