So I got it working by buying an Terra MT47 modulator !thanks to @[email protected] and her advices !
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 thatSo, that won't work properly.
Hugo is exactly the kind I don't want, WYSIWYG is important :D