OK, Dad has an old TV... 1 Coax input. Currently has set up VCR, Dish network box and a little box that had to be added a while ago for older TVs. I bought him a DVD player and am trying to hook it up.

The Coax from the wall goes to splitter then one goes to "little box" and the other to Direct TV box. The Direct TV box has one Coax going the VCR. The VCR goes to the TV.

How and where do I connect the DVD player and an RF module?