Does anyone know how to clean up a composite signal?
This could create a few chuckles. 
google, from
http://www.ianstedman.co.uk/downloads/Amigafix.txt :
25) The composite video of the Amiga A1000 needs color correction. Your
red, greens, and blues may not look correct. The modification is simple;
just remove resistor R140; located on the rear-left of the motherboard. On
some A1000's, R140 will have to be replaced with a 470K ohm resistor
instead.
but, if you absolutely can't use RGB, better try making RGB->S-Video adapter.
