Westinghouse showed off a 2160p (Quad HDTV) TV at CES 2007:
Of course, the Quad HDTV was our first target at the Westinghouse booth. The 52" TV runs a super high-resolution of 2160p (3840 x 2160 pixels). In absolute numbers, the device is running a stunning 8.3 megapixels - four times more than 1080p TVs (1920x1080p) and more than twice the resolution of Dell's, HP's and Apple's 30" desktop LCDs. So, what do you get from this resolution, especially if HD DVD and Blu-ray are running only 1080p anyway?