There are tens if not hundreds of Apps you can use on your androidTV or phone to stream online content.
I’ve spent months comparing to this famous APP called Mobdro - well according to me its not the app I can recommend at all.
I currently use Redbox Tv that offers Live TV channels from around the world and its the best so far in my experience.
Well, on another hand streaming content I think Terrarium is the best app too. Like seriously!