who’s The cable company? Cox, spectrum, Comcast all have boxes with rf controls. That would work for the different tv brands idea.

Comcast and spectrum both have decent streaming apps. You could use those on Roku tv’s if you add the Roku rf remotes them. Comcast could run on appletv app in the nicer Samsung TVs that use rf remotes.

Streaming tv (sling et al) instead of cable boxes using Roku or Samsung tv's and their respective rf remotes.

Other then that, you’re at a really simple control system with ir routing. That could be nice since you can macro up on commands, default channels etc.