As I mentioned in my post yesterday about Netflix, one of the obstacles video-streaming services are going to have to overcome is the quality of the files they're sending to big HDTVs. Apple has recently introduced 720p HD files on iTunes to download to its Apple TV device, but lesser-known Vudu may have gone one better with its new high-def format for its own streaming devices. The company has introduced the new HDX format, which manages to send 1080p HD content to its BX100 living-room box. And apparently, this announcement deserves any hype it's receiving. Resident New York Times tech columnist David Pogue gushed over the video quality of the HDX format in a column yesterday, pointing out that the... ...