During the scene where they are outside the church, there is a news van parked outside the church to cover the event.
The call letters are KREL, which makes no sense as the church is in New Jersey, well east of the Mississippi, and all the TV stations there start with a W.
You are mostly correct. MOST broadcast stations east of the Mississippi begin with "W". Not all do, however. There are a few "K" stations left out east.