"Jim Lux" wrote in message
...


Snip

HDTV, as carried on broadcast TV, is 19.8 Mbps. If you're happy with a
lower frame rate, or can do a lot of frame/frame compression, you can
get it lower.

Yes. OP said "near real time," which I take to mean "OK to drop some
frames," like the satellite video phones the reporters use from the
boondocks. Thus, high-def can be confined to a lot lower bandwidth if you
don't mind seeing compression artifacts as each frame is being built on the
screen.

I have a contemporary example: KABC-DT, Channel 7 Los Angeles is high-def
on 7-1 AND high-def on 7-2, with a service called Living Well. See
http://livingwell.tv/Welcome.html.

Living Well is apparently getting a skimpy bitshare, as compression
artifacts are obvious, especially on scene changes and motion, whereas ABC
programming on 7-1 is just beautiful. Living Well is very good, sharp HD,
but you can see details being "painted in" for a quarter-second after a
scene change.

"Sal"