I've been thinking very much about doing an simulation of an video signal through Composite.
But i will need some help in order to get that done.
If this idea works well, i will try to rewrite DotCrawl++ to use this new script.
First is to create a luma signal.
The luma signal has an checkerboard look
(and that's where dotcrawls come from).
I will be very thankfully for the help.
Images from DoctorDothraki's Domesday Duplicator uploads.