If you are connected to cable television, the easiest way is to ask the operator to connect certain channels.
They are interested in seeing as many people as possible. The best way is to negotiate in the church so that more people ask to connect some specific channel.
Send requests in a respectful way and have patience.
If the TV channel is connected
Be sure to write a thank you note. Ask and other members of the church to write letters of appreciation.
If the TV channel is connected
Unfortunately, operators do not always follow requests. They have a limited number of channels and they can not expand infinitely.
Anyway. It is worth trying, where it works. If not, try other options: Internet, mobile Internet or satellite.