Complex sentence: This came down to two factors: competition from "Gomer Pyle, U.S.M.C.", and the network reportedly decided it would be cheaper to import "The Avengers" and run it in the same time-slot than to keep producing "Honey West".
Split into simpler sentences: This came down to two factors--first, competition from "Gomer Pyle, U.S.M.C.". Second, the network reportedly decided it would be cheaper to import "The Avengers" and run it in the same time-slot than to keep producing "Honey West".