I have enabled CEC on the Vizio, which gets me most of the way there, but I still need two remotes (rather than three I had been using). Streaming is easy. Turn on the TV with the Firestick remote, and hit the Home button if the HDMI source is on the cable box. If I want to switch to cable, I hit the MIC button and tell it it, “HDMI 1,” then control things with my cable remote. Switching back to streaming merely requires a press of the Home button on the Firestick remote. Unfortunately, I can’t (or can’t figure out how to) turn the cable box on or off or change channels on the box with the Firestick. It’s a Cisco box from Time Warner (now Spectrum) if anyone has any ideas about that.