Panasonics 103-inch Plasma screen, shown off at CES 2006, measures in at W: 2,269.4mm H: 1,276.6mm Diagonal: 2,603.8mm, and has the same 1080p HDTV resolution as the TH-65PX500 65-inch Plasma TV. Who cares anyway, look how big it is!
More info at the Panasonic press release