https://www.scartblaster.com/ - This one if from the RGB-PI creators. It claims to be an passive switch and needs no power. How could one connect up to 6 devices and still have the same voltage level on each of them? If the 6 TVs have 75Ohm resistors on the rgb inputs, the load would be too much for one output. Am I missing something here? Are the SCART Inputs on TVs high impendance?