[HDTV1080P]

Sony KDL-52XBR4 review in June 2008 Home Theater magazine

For those interested in the Sony XBR4 and XBR5 LCD flat panel screens there is a review on the KDL-52XBR4 on page 74-76 in the June 2008 Home Theater magazine.

Highlights from the review regarding 1080P/24

Quote
“If you turn the Motion Enhancer off, each frame is simply repeated as many times needed to get 120HZ, with no interpolation”
So yes the Sony XBR4’s and Sony XBR5’s properly refresh 1080P/24 similar to a film projector in the movie theater.

Some negative and positives of having motionflow turned on
Quote
“More and more LCD HDTV’s are designing to operate at 120HZ. When done correctly, 120 HZ operation can minimize motion blur, an ongoing issue with LCD (but, in my opinion, not a deal breaker on most recent designs). “
“Motionflow is Sony’s name for its 120 Hz technology, and it works as advertised. It can smooth motion in a starling fashion. But it can also make a 24-frame-per-second, film based source look like video. This can be jarring, particularly to a film purist. If you must use this feature, I recommend you stick to the standard setting and engage it only on video-based programming, such as sports. Avoid it on movies.”

So motion enhancer (motion flow) can improve the picture on some 60HZ video programs, but at the cost of adding artifacts to the picture once and a while. Motion Enhancer should be turned off when watching 1080P/24 BLU-RAY’s if one wants the image to look closer to film quality instead of a smooth 60HZ video quality.