For Smart TVs / Devices, the only setting required is to connect your phone as well as your Smart TV / Device to the same Wifi network.
For IR TVs, your phone must have a built-in Infrared (IR) feature for the app to work as a remote control. The IR feature is required to send signals from your phone to the TV set just like a normal TV remote.

Moviebase is the most powerful exploring and tracking app for movies, series, seasons, episodes and actors from the largest community database TMDB.
Get access and use media content from The Movie Database (TMDb), IMDb and Trakt.

Web Video Caster® allows you to watch on your TV videos from your favorite websites including movies, TV shows, live streams of news, sports, and IPTV.
It also lets you cast local videos stored on your phone. Photos and audio files are also supported. Subtitles are detected on the web page, you can also use your own subtitles, or you can use the integrated search of OpenSubtitles.org.

Moviebase is the most powerful exploring and tracking app for movies, series, seasons, episodes and actors from the largest community database TMDB.
Get access and use media content from The Movie Database (TMDb), IMDb and Trakt.

TV Remote: Universal Remote, commonly referred to as a universal remote, Remote control, TV remote control, universal TV remote simply a TV remote, is a multifunctional device designed to streamline your entertainment experience.
Compatible with an array of devices such as TCL remote, Hisense Smart TV remote, Mi remote, and Roku TV remote, it serves as a centralized control hub for various electronics, including smart TVs, DVD players, cable boxes, and home theater systems. Its seamless functionality allows effortless switching between devices, granting users the convenience of managing multiple gadgets with a single, user-friendly remote.