RE: RE: 50hz v 100hz CRT TVs

["Phil Harris" <phil@xxxxxxxxxxx>]

> Do I take from your comments Phil that, with a 32" CRT you=20
> would only go 100hz?  Or am i better say spending the same=20
> money and getting something smaller and 50hx like a 28" Loewe??

I would only go for a TV with 100Hz processing if I was sure that the
processing was good enough not to feck up the picture in the first place -
otherwise I would go for 50Hz with no processing (or switch off the
processing on a 100Hz set and hope that they haven't used shorter
persistence phosphors on the tubs as that would then enhance the flicker -
running 50Hz field rate with short persistence phosphors on the tube).

I guess the first thing to ask is are you or your family susceptible to
noticing 50Hz flicker? If so then can you relieve some of that by your
environment? Watching TV in a dark room will make flicker more noticeable
s=
o
if you typically sit in the dark then introduce some lighting into the room
positioned so as not to reflect from the screen - try my earlier suggestion
of a small uplighter behind the TV itself to introduce some light behind
th=
e
set so as to reduce the contrast between the light given off by the screen
and the darkness behind the set (usually a corner in most peoples rooms).

There's also a really disturbing trend for people to stick *HUGE* TV's in
small rooms for that "cinema experience" but at the same time
this means
that the distance between the viewer and screen reduces (as the sets are
generally deeper) whilst at the same time the area of image (which does
flicker to some degree whether you notice it or not) also increases - big
screen TVs are not necessarily better. We are saddled with good old
interlaced PAL source material on the whole (although Murdoch does seem to
have plans to broadcast some Hi-Def material in the reasonably near future)
which is generally pretty poor resolution - 768 x 576 pixels x 24 bit
(including overscan) and so the bigger you blow that up the grainier it
gets. Remember that 100Hz processing is only upping the field rate to get
rid of flicker - scaling to increase the effective resolution and
deinterlacing to give progressive scan is a completely different water
boiling implement full of haddock. (My last video scaler and scan converter
was =A32.5k about 3 years ago.)

I quoted Loewe simply because they do tend to set their sets up better than
other manufacturers ...=20

Phil