Vizio VP505XVT review

Performance
Simply put, the Vizio VP505XVT is one of the better-performing plasma TVs we've tested this year from any manufacturer. It delivered deep black levels, relatively accurate color, and solid video processing, thanks in part to HQV.

Even more than many other HDTVs, the Vizio VP505XVT really benefits from having a full suite of color temperature adjustment controls. That's simply because none of its preset color temperature modes came anywhere near the broadcast standard. The usual favorite, Warm, was exceedingly plus-red and plus-green, while Normal was less-so but still significantly off. We ended up using Cool for our precalibration measurement, but we highly recommend you take advantage of our picture settings (see the bottom of this blog post) and go the Custom route.

For our image-quality tests we were able to compare the Vizio directly with a few other 50-inch 1080p plasmas, namely the Panasonic TH-50PF11UK (which performed so much like the VP505XVT that we're pretty sure Vizio is using Panasonic glass), the Samsung PN50A650 and our reference Pioneer PRO-111FD. We also threw in one of our favorite LCDs, the 52-inch Samsung LN52A650, for good measure. Our film of choice this time was the great-looking Sunshine Blu-ray played via the Sony PlayStation3.

Black level: The film constantly plays with light and darkness and features numerous scenes of high contrast, which makes it a great test for black level. The Vizio was superb in this regard, rendering dark areas, like the voids of space, the letter box bars, and the shadowy equipment and corridors of the ship, for example, with as much depth as the Panasonic and more than either of the Samsungs had. Details in shadows, such as the barely illuminated gear in the corridors, for example, or the struts and modules of the ship as it wheeled through space, appeared as natural and well rendered as on any of the nonreference displays. In both areas, we still preferred the look of the Pioneer, naturally, because of its deeper blacks, but the Vizio definitely held its own against the more expensive and still superb Panasonic. Those two were basically identical in terms of subjective black level and according to our gamma measurements the Vizio was a even bit better (2.171 versus. 2.049 after calibration, compared with an ideal of 2.2).

Color accuracy: After the adjustments, the Vizio exhibited as accurate a grayscale as just about any plasma we've tested. Skin tones looked suitably pale under the ship's harsh lighting, with none of the overly reddish tinge seen on displays with inaccurate color decoding. The blasts of white light and floodlit bulkheads also looked as accurate as the Pioneer. Near-dark and black areas remained relatively true, and while some shadows appeared a bit redder than the reference display or the Panasonic, the difference certainly wasn't drastic.

Primary colors were a weak point, however, and green was off significantly. The leaves of the trees during Mace's time in the Earth Room, for example, had that sort of overly yellow, neon-ish tinge we've seen on many plasmas with an inaccurate green primary. Both the Samsung and the Pioneer looked more natural in comparison, although the Vizio was about the same as the Panasonic and wasn't as bad as some greens we've seen.

Video processing: We naturally expected the VP505XVT to ace most of our video processing tests by virtue of its HQV processing. In fact, the deinterlacing tests we use were created by HQV itself. The Vizio passed the video-based test without a hitch and technically passed the film-based test too, but it wasn't as clean as we expected. To pass the test, a display (or Blu-ray player) has to fully resolve a 1080i pattern moving back and forth at 24 frames per second. Most displays that pass deliver that full resolution perfectly, but with the Vizio we saw medium-faint flashes in the most detailed parts of the pattern. Those sections didn't strobe or introduce vertical lines--both sure signs of a failure, according to HQV--and we could still see every other line, so that's why we say the TV "technically" still passed. But we expected those sections to be rock-solid, as they are with most Blu-ray players and with other displays that pass the test, such as the Pioneer and Panasonic plasmas in our comparison.

As far as we could tell, however, that flashing on the test pattern didn't affect the Vizio's performance with program material. The HQV disc's pan around Raymond James Stadium was free of moire, as was the grille of the RV from Ghost Rider and the stairs from Mission Impossible 3. We also noticed no jaggies in the shirt of the cook in Sunshine or the limo pulling up in MI: 3. In all of these scenes, the Samsung plasma, which failed the deinterlacing tests, exhibited these artifacts, whereas the Vizio, along with the Panasonic and Pioneer, did not.

Watching HDTV, we also noticed less-than-ideal behavior from the Auto setting of the Vizio's Film Mode. When in Auto, the ticker on ESPN would seem to drag and become blurrier quite often as it scrolled by, which is the same thing that happened when we manually chose the Film setting. Choosing Video, on the other hand, eliminated the issue. We'd expect Auto to perform better and choose between Film and Video correctly, especially on a display with HQV processing.

Unlike the other displays, the Vizio introduced some false contouring. For example, at the 2:55 mark we saw faint contours in the shadow on Searle's head as the sun brightens, and again at the 11:33 mark in the sky above the ocean. The other displays delivered a smooth progression from light to dark and between colors. We noticed the contouring often enough to consider it one of the major issues in the Vizio's performance, but it's not a deal breaker in our opinion.

As expected of any 1080p plasma, the Vizio resolved every detail of 1080 resolution sources and passed between 800-900 lines on our motion resolution test.

Bright lighting: Under bright ambient light conditions the Vizio is nothing special. It attenuates about as many reflections as the Samsung plasma and doing a bit better than the Panasonic, but still not approaching the Pioneer in this regard, It also failed to preserve as deep a shade of black as any of the other displays, with the exception of the Panasonic.

Standard-definition: As with the deinterlacing tests above, we use HQV's test DVD for standard-definition testing, and as expected, the Vizio performed well. It resolved every line of the DVD format, and on the Detail test, which includes areas like a stone bridge, steps, and grass, its rendition was as sharp as any TV in the room, although not appreciably sharper, and not as good as the upconverting in our reference Oppo DVD player, for example. It smoothed out jaggies from moving diagonal lines and a waving American flag extremely well, however--better than the Panasonic. Both versions of noise reduction come in three strengths, and between these options the Vizio cleaned up noisy shots of skies and sunsets as well as any display we've tested. It also snapped into 2:3 pull-down mode quickly and effectively.

PC: We've experienced stellar performance going in via VGA to Vizio displays in the past, so we were a bit surprised when the VP505XVT didn't measure up. While it accepted and displayed a 1,920x1,080-pixel signal, it failed to deliver every line of horizontal resolution, according to DisplayMate, and we detected interference that made text in smaller font sizes difficult to read. Via HDMI, the set's performance was much better, with full resolution and otherwise excellent quality. We cleaned up the hint of edge enhancement by setting sharpness at -1, which worked very well.

Juice box

Vizio VP505XVT	Picture settings
	Default	Calibrated	Power Save
Picture on (watts)	474.03	383.88	N/A
Picture on (watts/sq. inch)	0.44	0.36	N/A
Standby (watts)	0	0	N/A
Cost per year	$146.72	$118.82	N/A
Score (considering size)	Poor
Score (overall)	Poor

How we test TVs.