🚀 go-pugleaf

My cable TV connection contains 11 channels. Most of those are sent in 
normal VHF-bands. That's okay. But, that's not all. Some channels
(Finish TV3, Discovery, Music TV... etc.) are sent with S-bands
and H-bands. (Near 350MHz, I think?) - and that isn't funny any more!

My TV-set is so called 'normal' European TV-set and it could not receive
those S- and H-bands. Okay, here comes the question:

I   I need a converter which transfers S- and H-bands to normal VHF- or
I   UHF-band. I think it isn't a easy job. I have searched most databases
I   and literature referats and I haven't found any article or electronical
I   project for this kind of problem.
I  
I   The circuit works with high frequencies and the mechanical construction
I   becomes essential. So I thought I should get more accurate diagrams.
I   (I didn't start to experiment with easy mixers, my friend tried to use
I   old TV tuner but he got nothing but noise on screen!)

Do you have experiences of that kind of converters or seen any
articles? Please, drop a message!