Complex sentence: It was later sold to Wometco Broadcasting and the calls changed to WTVG-TV for use with the pay Wometco Home Theater service, a set top descrambling box.
Split into simpler sentences: It was later sold to Wometco Broadcasting and the calls changed to WTVG-TV. Wometco purchaced the station for its pay Wometco Home Theater service, which required a set top descrambling box.