On Fri, 2017-01-13 at 08:38 -0500, Noel Chiappa wrote: > > From: William Degnan > > > some are made to handle both pal and ntsc automatically. ... > not sure > > if they still do all that for LCD tv's but why not? > > Well, one thing most LCD's don't handle is interlaced video, so that > could be an issue.
Anything sold as a TV (as opposed to a computer monitor) will include a deinterlacer; a TV that could only handle progressive scan input would be unacceptable to most consumers. Standard definition broadcasts were always interlaced and so are most/all DVDs, though as far as I know Blu-ray is progressive scan only. Even high definition broadcasts are still routinely interlaced in many cases. ATSC for example can be either 1080i or 720p, and I think the majority of DVB broadcasts are 1080i. In fact, even computer monitors often tend to include some sort of deinterlacing capability, though I suspect this is more because it comes for free with the chipsets than because the market actually requires it. But monitors tend to have a minimum horizontal sync rate of 20kHz or so and often won't lock to a 480i/576i input, so they'd be no use for the current purpose anyway. p.