“Si miras fijamente al pudú, el pudú te devuelve la mirada.”
Have you tried IPTV lists?
Open up this free list with VLC player and hit Ctrl+L to open the playlist (the list of channels). They seem to have at least 3: QVC Japan, NHK World Japan and New Japan Pro Wrestling World.
You might find better lists for japanese TV if you dig deeper into IPTV. Note that lots of lists are paid.
Good luck!
Disappointment