How to set up HD PVR with hdmi and Turtle beach headset

I use Turtle Beach Head set and there fore at the back of my box I use the Audio AV cable to plug them in. There fore I can’t use the HD cables that go into and HD tv or in this case the AV cable. I also play and a monitor that runs through an HDMI cable. So I have NO clue how to set up an HD PVR IF I GOT ONE cause I’m looking into it.

if you understand what I mean, and can help me THANKS!

OK, I had thin same problem, what I did is I took the bottom half of the plastic piece off that surrounds the part that plugs into my xbox (because it covers up the HDMI port), and plug both the AV cable and HDMI cable in at the same time. That is what I did, and it works.