Originally Posted by donscastle
DirecTV says I am forcing the power for all devices down one wire in the wall and then through even smaller wires in the power strip; and therefore am throttling the power available to each device.
I don't think he's full of crap. I KNOW he's full of crap.
Well, the problem is visible lines on the hdtv when using component video cables.
Now, that could indicate a power/ground-related problem, but let's not equate analog video interference with "not getting enough power", because that is just plain false...
If by "lines on the TV" you mean moving diagonal / horizontal darker-than-the-picture lines on the screen - that's analog interference. If it's something else, it's a different problem.
Interference can come from a number of sources - poor connections, bad connectors, bad cables can cause this. Grounding issues can also cause these, which is where the power strip could come into play.
As was already suggested, disconnect the rest of the gear from the TV as you need to isolate the source of the problem - run component video straight from the DirecTV box to the TV - see what you get there. Try it with and without the analog audio connection, too. If the problem is still there, connect something else via component video to the same input and see what that looks like.
And also, before we go much further - why aren't you using HDMI from the DirecTV box? Are you running all the sources to the TV instead of through the AVR? If you run the DirecTV box to an HDMI input temporarily, does the problem go away? The DirecTV box will output both component and HDMI simultaneously, so you can try both at the same time and switch between them to see any differences.