The tests are pretty basic but the results demonstrate pretty conclusively that while HDTVs have improved a lot in recent years — they still have a LONG way to go:
3:2 Tests
Most scripted TV programs and almost all movies are filmed at 24 frames per second. 1080i broadcasts require that the 24 frames be split into two fields that must be recombined in the proper sequence in order to produce a 1080p signal that’s artifact-free and retains full resolution.
The Silicon Optix HD HQV disc also includes a test of this key performance parameter. Last year’s results were disappointing with only 14 out of 74 sets passing (18.91%). The 2008 models showed a slight improvement with 29 out of 125 sets (23.2%) properly handling the signal.
If you think that’s bad, check out how badly most HDTVs do at maintaining detail when objects move onscreen. All sets should keep 1080 lines of resolution, but only one managed it.
Plasma sets ranged from 800 to 900 lines.
Fancy LCDs with 120Hz technology to “eliminate motion blur” managed 550-620 lines, which means that motion blur obscured roughly half the detail.
Regular 60Hz LCD sets topped out at 350 lines.
Wow. It was yeoman’s work to go through all those tests. Anyone who is considering an HDTV buy should definitely take a look.
The PDF with the test results is at the bottom of the post, but read everything first so you understand the numbers.
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