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I started researching the NTSC standard to figure out how to make sense of this hack, and somehow I ended up here https://en.wikipedia.org/wiki/Quadrature_ampl

I started researching the NTSC standard to figure out how to make sense of this hack, and somehow I ended up here https://en.wikipedia.org/wiki/Quadrature_amplitude_modulation https://en.wikipedia.org/wiki/Quadrature_amplitude_modulatio... and ... amazingly I know some of these words now. I blame you fully for this. Well done.

ddingus 7y ago
That is just the best of larks! Love it when that kind of discovery learning happens. Makes me feel excited about the fact that so much is still new to us, as people with our limited time and experience. NTSC is a lot of fun to hack. I did a lot of projects similar to this one as a kid. Basically tried artifact color on many machines. The Tandy Color Computer 3 has a 640x200'ish mode with 4 colors. That one boils down to one byte per pixel, using composite video input. Also, the CPU is a 6809! So much byte per pixel fun. All this because of how NTSC works. PAL, by the way, can be abused vertically to get additional colors. That can be seen in many Demoscene art productions.