Complex sentence: He played a commercial ship's captain, David Scott, and Paul Burke played his partner, Jeff Kittridge, in five episodes of the series, which aired first on CBS and then ABC under the revised title "Adventures at Scott Island".
Split into simpler sentences: He played a commercial ship's captain, David Scott, and Burke played his partner, Jeff Kittredge. The series aired first on CBS and then ABC under the revised title "Adventures at Scott Island".