The newer Spectrum boxes (I think they call them world boxes) have RF remote control... BUT my only experiences (over a year ago) with them was that they were not ready for prime time. Huge lip sync issue, lots of power cycling issues. Cloud DVR not working. All were replaced with older boxes with IR only remotes. I have not seen any of these boxes in my area since.
If I were you, I would count on IR only remotes.
I'm Not an engineer, but I play one on TV. My handle is Tweety but I have nothing to do with the organization of similar name. I just had a really big head as a child so folks called me tweety bird.
