New tv and receiver? and receiver does not accept coax? (typical these days). How about the tv itself? what inputs does it have? I just purchased my new TV for my 21FB Jay Flight. It has HDMI, YPrPb and coax input (has an internal digital tuner). If you want to translate the digital OTA broadcasts to RGB output to go into your receiver, you'll need something like a Zinwell converter box. That's what I did for my old TV (analog) before I went digital. To get from Coax-to-RGB-to HDMI, you'll need another HMDI converter. Amazon has all that kind of stuff cheap. I'm sure you'll get more input and advice. Best of luck. And the new bluray players I am familiar with wont accept coax, either.
Here's a link to something like what you are looking for: