I have a TV in my room that's years old and I have a DC hooked up to it with this cable here. (I just stick it in the back of the TV, choose the right channel and it works fine.)
I tried the DC downstairs on two newer TVs with that cable but I can't get it to work with either. Anything with RCA or SCART connectors work fine. It's the same story with any older console whose AV lead connects to the back of the TV the way the TV antenna does. Any ideas? I'm in a PAL region if that makes any difference.