Oh. While I'm here. One of the things I forgot to mention because I didn't think it would be a factor, but Bruno, you might know for sure whether it's a factor...

Since the run to the TV ends up being functionally about 10 feet from the AV rack, and since DVI cables only seem to come in 6 foot lengths unless I want to take out a mortgage, the connection to the TV isn't a DVI cable. It's a 10 foot cable I happened to have lying around from another project that's got DVI on one end, and HDMI on the other. At the switchbox end of things there is a DVI-to-HDMI adapter dongle, so that I've got DVI at both ends of the connection.

I was under the impression that such a connection was the same as a DVI connection, because the same signals got carried between the devices. Any comments, Bruno?