Technology setup ideas/help for TR plus media (phone, ipad, laptop, apple tv, chromecast, chromebook, fire tablet, ...)

I would love to have TR cast to my TV somehow.
I have in on my phone too, but is a huge pain to watch tv and pay attention to the phone. (First world problem tho).
If they make an app for the appleTV. That would convince me of switching from Roku to AppleTv.
Of course it would need to let me watch a show AND have the app running, similar to a pc setup.
And im guessing that would be very hard to do.