I'm thinking of getting the Harmony 880 remote. Does anyone know if the Harmony (or any of those expensive universal remotes) can handle EVERY function of a Tivo or HD TV remote. For example, the 30 second skip button on Tivo. Also, my old SD Directv receiver has a 'Who' button to easily switch between profiles. My plasma TV remote has aspect ratio buttons, etc. If I lay out 200 bucks for a remote, I want it to be able to do EVERY function possible on any of my remotes that it will replace. Is that possible with a universal remote?