this post was submitted on 20 Aug 2025
        
      
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So what is happening is quite simple:
I AM FRENCH
which is considered bad when using old TVs. Why ?
Because we use L and L' bandes when most modulator are using B/G or things like that
So, that won't work properly.
So I got it working by buying an Terra MT47 modulator !
thanks to @mayasynth@eldritch.cafe and her advices !