I got the crazy idea to buy four thin bezel TVs and create a TV wall. I think I understand the controller side of things where I define which input is displayed on which screen, or if I want to stretch one input across all four screens. I'm stuck on how to manage the channel each input device (Tivo in this case) is displaying. Back in the S2 days there was a physical switch on the remote that allowed changing between two Tivos. That switch is gone and I'm thinking 4 minis so the 2 position switch wouldn't help anyway. Any thoughts on how to manage each? Tivo mobile app?