All of the samples used in CNET HDTV reviews represent, as far as we can tell, shipping models. However, we never review preproduction samples. We typically review models as quickly as possible, so we often receive early versions of firmware that are sometimes corrected later. While our experiences are usually representative of other samples with the same name by the same manufacturer, we can’t always be sure of that since performance can vary somewhat from sample to sample-particularly if newer samples receive updated firmware, or if manufacturers make changes without updating the model name. Unless noted otherwise, CNET HDTV reviews are based on one reviewer’s hands-on experience with a single particular sample of one model. * FPD Benchmark Software for Professional (Blu-ray) While we use a variety of DVD and Blu-ray sources, including reference-quality theatrical releases, our primary test material includes: Velocity Micro CineMagix Grand Theatre Home-theatre PC.Sony PlayStation 3 Blu-ray player (reference).We also use this for side-by-side comparison testing. Extron DA6 YUV A: A six- output component-video/RGBHV distribution amplifier that can send those sources to as many as six different displays simultaneously without any signal degradation.We use this for side-by-side comparison testing as well. Accell UltraAV HDMI 4-8 Switch: An eight-output HDMI distribution amplifier that can send any of four HDMI sources to as many as eight displays simultaneously without any signal degradation.We use this for side-byside comparison testing. Gefen 2x8 HDMI Distribution Amplifier: An eight-output HDMI distribution amplifier that can send either of two HDMI sources to as many as eight displays simultaneously without any signal degradation.Our secondary generator, rarely used, is an Accupel HDG-3000. Sencore VP-403C: A signal generator that outputs a variety of test patterns at various resolutions and formats, including all HDTV resolutions and 1080p, and can output to composite, S-Video, component video, DVI/HDMI, RF ATSC, and RGB.The reference and test gear in CNET’s TV lab also includes:Ĭurrent reference display: As of September 2008, CNET uses the Pioneer Elite Kuro PRO-111FD, on long-term loan from the manufacturer, as the primary reference display for colour and black level performance. ![]() Chromaticity, also known as colour temperature, measures the hue of a display at given levels of brightness and is expressed in degrees Kelvin or as X and Y coordinates on the CIE chromaticity diagram. The spectraradiometer accurately reads chromaticity and luminance from any type of display, including CRT, plasma, LCD, and DLP, in direct-view as well as front- and rearprojection configurations. The CS-2000 improves upon the CS-200 in its capability to measure very low-luminance sources. Our primary mechanical test device is a Konica Minolta CS-2000 spectroradiometer, which replaced an older CS-200 in June 2008. ![]() All of our TV testers, namely David Katzmaier, Matthew Moskovciak, and Kevin Miller, have extensive experience reviewing and calibrating displays. Test patterns and the latest gear are no substitute for a knowledgeable, keen-eyed evaluator with a background in reviewing similar types of TVs. ![]() The most important piece of test equipment is a trained, expert eye. But what ltimately distinguishes one TV from another is how good the image looks. Today’s TV choices cover a broad spectrum of screen sizes, aspect ratios, features, technologies, and prices.
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