I got a new laptop at work, so I've got the old laptop for a while before I turn it back in. Since I needed to swap drives, and had a bare system, I decided to install Ubuntu Linux on it.
Other than a bit of wonkiness getting the wireless card up, it was a really easy install, so I decided to see about switching the old tower over to Linux.
The Linux version of VLC Media Player was able to play my .wmv files.
The wireless USB connection worked. Only a little bit of fiddling.
The TV's 1280x768 video resolution was supported.
What the hell, it's worth a try.. It's by no means 100% yet, but it's something.