Complex sentence: As a result, WTTV will become the third television station in the Indianapolis market to affiliate with CBS and became the second (after WRTV) to have served as a primary affiliate of all three heritage broadcast networks.
Split into simpler sentences: As a result, WTTV will become the third television station in the Indianapolis market to affiliate with CBS. It will also become the second (after WRTV) to have served as a primary affiliate of all three heritage broadcast networks.