Sega Genesis Video Problem
I recently dug out my Sega Genesis after it had sat in my closet for a few years and after hooking it up to my TV the picture is all black and white areas that are going crazy. I can see the intro screen to the games but after that its completely indistinguishable and there is no sound. When I run my cable for the TV through the Genesis adapter I can still get crystal clear cable television but as soon as I turn on the console on channel 3 it still goes nuts.
Video Game Consoles & Games - Sega - Genesis Console
Answers & Comments
Maybe you are supposed to be on Channel 4. There should be a 3-4 switch on your RF adapter. Try wiggling the video connection in the back of your genesis and see if that fixes anything, it might be a lose port, in which case you have to wrap the cable underneath the genesis or something heavy to keep it at a working angle (if you find a working angle).
It is also possible your RF cable is bad. They aren't that much on ebay, but make sure you buy one for your model (there are 2 models of genesis and they use different RF cables)
I hope this helps somewhat.