I don't know about you, but when a commercial comes on, I like to play on my old Super Nintendo. The thing is to check if the commercial I would have to go behind the snes and pull the RF out plug. To solve this I made a video on/off switch and but in a spongebob tin.
Step 1: Parts & Holes
Here are the parts you will need
1. A double pole double throw switch (DPDT).
2. One male RF connector
3. One female RF connector
4. some sort of tin.
First thing you will want to do is to make a hole for the switch and the two RF connectors
Step 2: Insert Connectors
Next you will need the RF connecots. I got mine free with our new DVD player. You will want to insert the wires into the holes before you strip them, this will save you some grief.
Step 3: Solder Wire
Now we are going to solder the wire Here is the schematic
Step 4: Put It All Together and Test
First, unplug the wire the connects to the port labeled "RF out" on your SNES, and replug that wire into your controller you have just made, and them plug it in to your SNES
Turn it on and start playing, pause the game and flip the switch (on the controller, not you snes) and see if it goes to normal TV, and then switch it back.
Here is a video of it working