I am 99.9% sure that the PAL NES (the original model) had Mono A/V output ports - I can't check my NES as it is at my parents' house in Toowoomba, but I can most certainly recall having hooked it up through composite. RF was definitely the standard until the PlayStation, though I believe that the first batch of PlayStations came with RF cables - at least the first one I rented did. The SNES didn't have any A/V output ports but you could use the N64 composite cable on it.