I just realized that I hadn't documented my TV wiring in over 5 years.
I've become a big fan of TiVos. They really simplify my TV wiring. Now the cable input goes direct to the TiVo. HDMI means that I can avoid the clutter of S-video and audio cables. I use HDMI connections to the TiVo and the DVD (I still haven't jumped to Blu-Ray).
As discussed earlier I'm using a 85 Mbps Powerline ethernet adapter. It's still working fine but I am watching for a set of the 500 Mbps models.
After Christmas I picked up a 1 TB Western Digital My DVR Expander to add storage to the TiVo.
I've also put a TiVo in the master bedroom. Without a DVD the wiring is even simpler.
For network connectivity I use the TiVo Wireless N Adapter. That does fine for the TiVo electronic program guide but really doesn't have enough bandwidth for streaming to the den TiVo. As a work around I transfer programs and watch them when the transfer is done. A third 500 Mbps Powerline ethernet adapter will go here.