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Sony Bravia KDL-46HX729 LED LCD 3D HDTV Review

46 in.

The Sony Bravia KDL-46HX729 is not recommended for avid 3D fans.

June 27, 2011
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Motion Performance

Sony makes an awfully big claim here by stating the the Sony Bravia KDL-46HX729 by bandying about the number "480." Of course, you need to read between the lines to discover that they're not claiming a 480Hz refresh rate. Rather, the KDL-46HX729 states a feature ambiguously named "MotionFlow XR 480." The true refresh rate is actually 240Hz, which means the entire screen is refreshing 240 times per second. That should be impressive enough on its own, but the new MotionFlow XR 480 means that the TV is doing additional interpolation between frames in order to make the picture look smoother. We just want to make this clear.

To its credit, the MotionFlow feature does a great job of smoothing out the judder and fine detail loss you would otherwise experience if the feature was off. For sports footage, this can be great. However, film-based content (or video shot to look like film) is meant to have a certain blurriness. If you enable MotionFlow here, the picture becomes overly crisp and, welll... wrong looking for lack of a better term. Use it, but use it wisely. More on how we test motion performance.

3:2 Pulldown & 24fps

The Sony Bravia KDL-46HX729 did show some problems with native 24fps content, like to what you'd get from a Blu-Ray movie. We noticed that certain high contrast, high frequency patterns created Moire and flickering. In most of the other Sonys we've reviewed recently, we simply located the Film Mode setting and played around with the options. No such luck here, as the TV continued to flicker no matter what features we enabled. It's not a huge problem, but we're surprised that the KDL-46HX729 had any trouble at all. More on how we test 3:2 pulldown and 24fps.

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Resolution Scaling

The Sony Bravia KDL-46HX729 has a native 1080p (1920 x 1080) resolution, but most of the content you'll be feeding the TV will probably be of a lower resolution. It's up to the TV's internal processing to figure out how to take that content and fit it to the screen. Overall, the TV is good at this task. More on how we test resolution scaling.

480p

When we looked at 480p content displayed on the Sony Bravia KDL-46HX729, the screen loses 2% on all sides due to overscan, an unfortunate but frequent occurrence.

720p

With 720p content, the TV showed no overscan loss, but did produce Moires in high contrast, high frequency patterns.

Our editors review and recommend products to help you buy the stuff you need. If you make a purchase by clicking one of our links, we may earn a small share of the revenue. Our picks and opinions are independent from any business incentives.

Sections

  1. Introduction
  2. Tour & Design
  3. Blacks & Whites
  4. Color Accuracy
  5. Motion
  6. 3D
  7. Viewing Effects
  8. Calibration
  9. Connectivity
  10. Audio & Menus
  11. Multimedia & Internet
  12. Power Consumption
  13. Samsung UN46D6500 Comparison
  14. Samsung PN51D6500 Comparison
  15. Panasonic Viera TC-P50ST30 Comparison
  16. Conclusion
  17. Series Comparison
  18. Photo Gallery
  19. Ratings & Specs
Our editors review and recommend products to help you buy the stuff you need. If you make a purchase by clicking one of our links, we may earn a small share of the revenue. Our picks and opinions are independent from any business incentives.
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Our editors review and recommend products to help you buy the stuff you need. If you make a purchase by clicking one of our links, we may earn a small share of the revenue. Our picks and opinions are independent from any business incentives.

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