Both your phone and TV must be on the same Wi-Fi network. The phone communicates with the TV over your local connection.
Most major brands have dedicated apps that offer advanced features like keyboard typing and voice control.
Requires an IR Blaster (infrared transmitter) in your phone. If your phone doesn't have one, you can buy small IR adapters that plug into your phone's charging port. 🛠️ Setup Steps by Device Type For Smart TVs
Use the LG ThinQ (formerly LG TV Plus) app to manage settings and inputs.
Control your Samsung TV or projector with your phone using SmartThings