Date   : Wed, 25 Nov 2009 17:35:40 -0600
From   : jules.richardson99@... (Jules Richardson)
Subject: Teletext receiver revisited

Philip Pemberton wrote:
> What I wanted to know is what the other VBI lines are being used for. 
> The BBC are inserting a grey-level test on one line, so what's the other 
> stuff for? (it's probably not all Teletext data)

A televisual equivalent of numbers stations?

</conspiracy-theory>

:-)