Seems I am having problems with MPV....

Either: there is 100% no video on my tv out
Or there is, but some vidos wont go full screen
OR all will work but my tv out will go ape shit for liek 1 second before it plays the vid (also sort of happens really fast on my regular monitor)

default: no tv out
old: default works, but does not always go full screen.
overlay mixer: no video on tv out
VMR7: no vid
etc.