I have all three systems that this switch is suppose to run off of. My plan was to use this to free up the other three tv inputs from my television. The cover of the box looks like there are two input jacks but there's only one. What you see is the input into the television and the other goes into the NES/SNES/SEGA. I was hoping I could have two systems hooked up at once but I have to use the same jack for all 3 systems.