To install MEET cloud video conference app, you can not find it in google play store but you can sideload it to your Mi Box or Android TV.
Sideload MEET APK using MiBox APK installer for Android TV in Google Play Store, watch this video and learn how to do it in few minutes.
This works on Android TV including Mi TV, Mi Box, NVidia shield.
Wallpaper, Mighty Like Us Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License