I have this TV http://www.hitachi.us/tv/browse/plasma/plasma/55hds69.shtml and it says that the resolution is 1366 x 768p. Can anyone tell me what that means and what I can do with it. The picture has been coming in great but I have no idea what I'm looking at. I know of 720p 1080i and 1080p but Ive never heard of this one. So can anyone help?