U disk installation must first download the installation package (APK format) on the computer. It's best to go to Software official website to download the installation package, which has high reliability and good security.
Most TVs have their own application market, where it is most convenient to download and install, but the number of software is very limited, mostly for children's education, small games, learning and sports, and there are few audio-visual software, which conflicts with the content that comes with TV after all.