If your cable provider carries TVJapan/NHK you can watch it.
Also I assume that you're aware of this: https://www3.nhk.or.jp/nhkworld/en/tv/sumo/
Also I assume that you're aware of this: https://www3.nhk.or.jp/nhkworld/en/tv/sumo/
* Railway Journey
* Cycle Japan
* Somewhere Street
* Lunch Expo
* Bento Express
* pythagoras switch (theres a new one thats like programing focused)
* I really miss Supreme Skills tho