I've got the Harmony Elite remote control with a hub. I know that IR commands are sent from the hub to various devices like my Denon AVR, my TiVo box, and my blu-ray player. But I also have a Fire TV box and a Sony KD-65X85K TV that don't receive IR commands. I think the Fire TV uses bluetooth and the Sony TV uses RF.

I don't know if bluetooth is also RF, but that probably doesn't matter.

My question is this. When I use my remote to control the TV, what is happening with the RF signals? Are they sent to the TV from the hub? How is my home WiFi involved in this process? And are RF signals being sent from my remote to the hub and then to the TV?

I'm confused. Can anyone help me?