I rec'd my Harmony 880 last week. Before I left town on Friday, I added my 1910 as a device and then sent an e-mail to support to copy your account for the 3808CI into my 1910 device. When I got back last night, it was done. I then added in my TV, blu-ray player, and cable box and started setting up my activities. The remote works great for the blu-ray player, but it isn't switching inputs on the 1910 for my cable box. My cable box is in HDMI3. I'm guessing it is just a lableling problem, but do you know which input name in Harmony will relate to the the HDMI3 input on the 1910? As always, thanks for the help.