Date   : Mon, 22 Mar 2010 07:59:14 +0000 (GMT)
From   : info@... (Sprow)
Subject: Kaboom, and composite video..

In article <2f806cd71003211659k734c06efx845431988634e5b4@...>,
   Rob <robert@...> wrote:
> Whilst I'm in here ... is there anything unusual, does anybody know,
> about the BBC Composite video output? 

Try turning on (or off!) interlacing
 *TV 0,0
 MODE7
or
 *TV 0,1
 MODE7
Sprow.