it took me a while, but I found an NTSC A1200 a number of years ago to replace the one I sold in the 90's (bought new from Softhut in my home town). I didn't give it much though since I used it with a 1084 monitor, but it does indeed show color via the composite hookup which is how I am using it now.
I have an indivision AGA on the way and looking forward to finally using this with a large monitor after owning a 1200 for 15+ years.
