8 Oct
2004
8 Oct
'04
9:47 p.m.
At 08:59 09/10/2004, Stan Barr wrote:
Hi,
ard(a)p850ug1.demon.co.uk (Tony Duell) said:
I remember many year ago (well On topic) looking at some similarly numbered
pages on
CNN, (via an early analogue cable) - they turned out to be full of reams
and reams of
garbage. Now, CNN were at the time promoting a subscription service
whereby you
could get up to the minute financial information, so I presume thhis was that,
encrypted.
Rob
Interesting thing : The page number is a 3 digit
BCD number, but nowhere
in the hardware are the invald BCD nybbles (1010..1111) ever prohibited.
Pages with such numbers can't be selected on a normal TV, but can be
decoded and displayed by a computer-controller teletext decoder. And such
pagesd certainly exist...
On my tv one of the Welsh channels (S4C, I think) shows page numbers like
14A 1E5 etc as it's counting when searching for a page. I've not been able
to get any of the pages to display even by entering 149 and pressing "up"
to see if it counts in hex :-)