I'm trying to figure out (if possible) how to tell my Google Assistant to play something on the TV.

I have the little square Onn Streaming Box and it's connected to my Google Home. So, the same way I can say "Hey Google, turn bedroom light off" when I'm not home and it does, is there a way I can tell it to cast anything on any streaming service? Everything I've looked up is just telling me about the android remote control feature.

In any event, sometimes I put the wrong service on for my Dog when I leave for background noise and it eventually stops and shows "Are you still watching?". So if there's no way to play something remotely, what are my alternatives? if any