nes/sega help

[meowmix]

i'm trying to get the nes and sega to play at the same time
i got a switchbox that connects them both to the tv. and u can switch between them. but is there a way to have them both on screen at the same ? so that the images are on top of each other? i know it sounds wierd..its an art project. thanks any help would be useful.!

[Cornelius]

Only thing I can think of offhand would be to use the RF outputs into a cable 'splitter', then on into the TV. Splicing wires together might be an option if that doesn't work. Either way I'm not sure if one would 'overpower' the other or not.

[FABombjoy]

That would not work at all. You need a video mixer, or you could do it digitally with 2 video capture cards & custom software.