So he has a $25 RCA-to-HDMI and a $70 HDMI capture card for around $100. A fully assembled Domesday board is also somewhere $100 according to https://forum.lddb.com/viewtopic.php?p=100903&sid=a582ac9ebc..., although I guess it could be higher without a good PCB supplier. The article's Airspy R2 SDR is $169.

There's a PAL decoder in https://github.com/happycube/ld-decode/blob/3d5cdeddbaf4515b..., I'm guessing it could be adapted to the article's purposes with some work. https://twitter.com/windyoona/status/1163043586314821635 says she was looking at it.

Despite my love for his channel, content, and personality, I think he was hugely in the wrong here. His example setup provided no better quality than my experience with a cheap analog capture device from ebay[0], though his is more pliable for other devices.

[0]: https://www.ebay.com/itm/USB-Video-Capture-Converter-Analog-...