[Coco] Dual monitors on a Coco 3?

[Paul Shoemaker]

I was wondering whether it is possible to connect both a RGB monitor and small TV using the RF out connector at the same time?  Does the Coco's video hardware send signals to both all the time?  Or does it sense when one is in use and disable the other?
Currently I am switching my Coco 3 back and forth from a VGA monitor (using Justin's amazing RGB to VGA device) for typical usage to a television using the RF connector when I want to see artifact colors.
I'm nervous to try connecting both at the same time, because I don't want to damage my one and only Coco 3!
Has anyone ever tried this?
Thanks!Paul Shoemaker