It was shown in High Def on TNT-HD and shown in widescreen on its regular channel. I don't see why it would be in 4:3 if viewers saw it in 16:9. Probably just an error.
I've contacted Fox and asked for clarification on the aspect ratio. They often have incorrect information for widescreen shows, and it usually takes a phone call and a couple of days to get an answer.
Adam, I'm not sure if the problem is with Fox, or the company that Fox has updating the website. Maybe it's a bit of both, but whatever the case I hope the errors stop. It's hard for us to report information when the information isn't always correct.