Re: “general picture quality issue”
Consider one of the WDTV devices … WDTV live … Live + … and so forth. These cheap boxes output reference video when set up right.
I use the original WDTV box that had no LAN input. The device has two USB inputs and I keep a micro USB stick plugged into it at all times. 16 GB of data on that so it includes all test patterns in both jpeg format and moving video. The USB stick is so small that it tucks away in the back of the unit and never has to be removed. It makes the thing a self contained HD reference source. I keep a lot of my HD clips on the device. Well, whatever 16 GB will hold.