Just a FYI,
The code base for the Vizio P75-c2 is missing the discreet Power On key,
I thas the Power one which is the toggle, it looks like the spot for the Power On Key is there but is simply a -
I tried repair the key and learning the discreet Power On key from my old Harmony but it does not work, I tried learning it a bunch of times and it says it works but when I trigger it nothing happens when the TV is off....
Not sure why it's missing this key as it's important so the activies don't get out of sync.