I need help on an impending audio/video/dvr setup. I'm about to purchase my first HDTV, god what year is it, and I think I have thoroughly confused myself on how to connect it to all my current devices properly. I think one of the problems is that it's a mix of newer technology and some older ones.

Here's all the system components:
TV- Vizio vx42l
DVR- Tivo series 2 model tcd649080
Receiver- RCA rt2600
DVD player- JVC xv-n50

Hopefully someone can shed some light for me and point me in a proper direction.