I have followed the wire from the POS all the way through the crawlspace under the house. There is a place under the house where Directv had installed a splitter, but it has been replaced by an inline splice connector. I know the Directv guy ran a new wire when he did his install, he said he could not use charter cables wires because it would burn up the directv box. I'm not sure where he came up with that idea, but I decided not to argue with him. The other line was already there from a previous cable install, but they did put new ends on both ends of the cable. The new line with the splice is connected to the DVR and the old line is connected to the other stuff.
My biggest problem with getting rid of the cable box is my wife. I have to have the HDHR working perfectly before I even think of disconnecting the DVR or there will be hell to pay, lol. I have to have this thing so it is easy for her and the mother-in-law to operate when she comes over to babysit. I also work 12 hours a day so am limited to the weekends to attempt anything slightly time consuming like this.
I guess Friday I can try taking out the 3 way splitter and using just the 2 way, one to the modem and one to the TA, then connect from the TA out to the HDHR in.
I have a Harmony One remote and plan to the the Xbox 360 as the media center extender in the living room.
Epson Home Cinema 3010 Projector____Paradigm 9SE MK II Main LR
Yamaha RX-V667 AVR_______________Paradigm CC-270 V.3 Center
Emotiva UPA-5 Amplifier______________Paradigm PS-1200 Sub
Sony BDP-570 Blu Ray_______________Polk bookshelf for Surrounds