SINAL DE TV ANALÓGICO: “ntsc signal”
https://www.rtl-sdr.com/tag/ntsc/
https://www.youtube.com/watch?v=z8DMFo4atnM
https://gist.github.com/racerxdl/d96cfd63a9bc409ce3d72315cd2c20ec
http://martin.hinner.info/vga/pal.html
https://hackaday.io/project/14904-analog-tv-broadcast-of-the-new-age