Date   : Sat, 01 Aug 2009 00:12:22 +0100
From   : philpem@... (Philip Pemberton)
Subject: Fw: Fwd: ITV Teletext to shut down in January

Jonathan Graham Harston wrote:
 > [snippety snip]
> Porbably not. Probably need at least 42 bytes of buffer RAM and
> read it from there at your leisure.

And the rest. You're assuming that the TTX signal is a single line per 
frame (or field in the case of interlaced video).

IIRC the BBC/IBA/BREMA spec says three lines, and the EBU spec says 
four. Unfortunately I don't have either to hand at the moment, and it's 
far too late at night (or early in the morning, depending on your 
perspective) to go digging...

-- 
Phil.
philpem@...          
http://www.philpem.me.uk/