It's feast or famine with remotes, innit? Woe is usually not having discrete inputs on a remote. But not this time, my denon avr-x3000 does not have input toggle on it's remote. Which I'd need in order to teach my Tivo Roamio how to toggle inputs on the avr. All it has are discrete buttons for each input. So, how do i get an input toggle into the tivo remote? Is there a known compatible code number to use in order to program the roamio remote without teaching it from another remote via IR? I suppose I could jump through hoops and try and find one of my other universal remotes, the use that to teach the tivo remote. Trouble is they're all in boxes "somewhere" yet to be unpacked since moving. No doubt not with their paperwork, so that'd be a whole other digging adventure to find their codes too. Somebody know if one of the pre-existing codes in the remote will handle this?