Including the post above, I've heard intimations that Sony, Panasonic, and Sharp all have potential models.

Sharp is the only one I can confirm because Control4 currently has IP drivers for a line of Sharp LCDs that go from 40" to 60".

I'm hoping to find some smaller televisions that offer IP control and I'm capable of writing a Control4 driver if I could find a protocol doc. If anyone has information on where to get protocol docs for any of these brands (aside from Sharp) I'd greatly appreciate it!