I bought an LG smart TV because the picture looked good and it was a good price. I have never enabled any smart features and it’s disconnected from the internet. I have an Apple TV box that I use as my tuner.
Depends. I was able to program my parents DirecTV remotes to do the input switching so they can go between their DirecTV boxes and the Apple TVs - the only LG specific remote code that we needed. I guess the DirecTV remotes learned the volume up/down and power too. Everything else is handled by the other boxes and their respective remotes.