There’s a new Patreon channel by Eric Souther that is focusing on video related tools and techniques developed within Touch Designer. Well worth the time! There are video demos and sample TD files to access. (Some stuff like the detailed video tutorials is available at the basic - free - level, but other stuff requires a relatively low cost paid membership. Check it out.)
He says “With this page, I want to share how to use TouchDesigner from the perspective of a video artist. I will share historical signal flows dating back to 1970s with contemporary means (TD). I want to share my knowledge and help others find new phenomena and images in the spirit of exploration.”