8 Oct
2004
8 Oct
'04
7:59 p.m.
Hi,
ard(a)p850ug1.demon.co.uk (Tony Duell) said:
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 :-)
--
Cheers,
Stan Barr stanb(a)dial.pipex.com
The future was never like this!