So, I filtered the channels in the Free Range app to show only HD channels and was surprised to see a number of channels listed that I can only get in SD on cable:
Disney Junior HD
Family Jr HD
Travel & Escape
I don't understand why these would be available on the app and not on cable.
It is somewhat annoying that I can watch these channels in HD on my phone which, with a 5-inch screen, doesn't really need HD but not on my 50-inch TV which definitely does need HD.