I saw that choosing my video channel on TV works without the switch like you said ( many thanks stone, i was lost^^' ) i ve had a lot of old consoles with RF , yes they were not great, and there was a really slight buzzing sound but what i get with my jaguar is a kinda good picture but just static sound , you know loud, very very very loud static sound ... could it be a problem with the unit? Solved everything , i hooked my jaguar up using an old Master System rf it looks and sounds good now , i mean , it s a lot better , now waiting for my cable to arrive^^ i tried some games , man the system was really gorgeus for it s time wasn't it? I m more curious now about past unreleased games ... anyone has info about the Ultimate Mortal Kombat 3 port? i m starting to love this system already!! Thanks for the support guys, you are too kind!