How hard would it be to find the original type tv that went into a Pong? If push came to shove, would it be possible to fit another similar tv into one? Also, is there another game that used the same coin mech as Pong? Maybe Tank II? I have access to 4 pongs, but they are all missing monitors, all PCBS are intact. Just trying to figure out if I should pull the trigger on them all? I have never owned a Pong, is there anything to look out for?