Most major brands have dedicated apps that offer advanced features like keyboard typing and voice control.

Both your phone and TV must be on the same Wi-Fi network. The phone communicates with the TV over your local connection.

If you have multiple different brands, a universal app can consolidate them into one interface.

Control your Samsung TV or projector with your phone using SmartThings

Download their official apps from the Google Play Store or Apple App Store. For Any TV (Universal Apps)

The method you use depends on whether your devices are "Smart" (connected to Wi-Fi) or "Non-Smart" (use infrared).

Open the Google TV app, tap "Connect TV," and enter the pairing code shown on your screen.