Test Bench: Vizio P42HDTV 42-inch Plasma HDTV

Color temperature (User mode before/after calibration): Low window (20-IRE): 6,220/6,425 K High window (80-IRE): 6,472/6,517 K Brightness (100-IRE window before/after calibration): 48.7/37.5 ftL

The Vizio P42HDTV 42-inch plasma HDTV's color temperature measured very close to the 6,500-K standard after picture adjustments were made with the set's standard user controls. Fine-tuning via its service menu resulted in an even more accurate grayscale. After calibration, the TV's grayscale tracking was ±100 K from 20 to 90 IRE - an excellent performance level. (Calibration needs to be performed by a qualified technician, so discuss it with your dealer before purchase, or call the Imaging Science Foundation at 561-997-9073.)

Color-decoder error on the Vizio was minimal, with only a -5% red deviation measured on the HDMI input. Picture-centering on the HDMI input proved to be a more serious matter, with a full 8% overscan measured on the right hand side of the screen, and 1% on the left. Vizio says this problem was peculiar to my test sample, however, and won't appear on production units. The average overscan on the set's component-video inputs, meanwhile, was 5% - a higher than usual amount, but something that wouldn't be detectable by most viewers. The set's resolution was also very good, with the alternating lines in a 720p-format multiburst test pattern coming through cleanly via its HDMI and component-video inputs.

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