Was so excited to get my Roku streambar today but I've had nothing but problems since setting it up today. Apple TV app doesn't work - says video won't load when I try to watch anything and to check connection which I did in Roku settings but still won't launch any show or movie. Ok fine so tried streaming on AirPlay instead. When I open AirPlay it says "Not enough space, delete channels" - I deleted almost everything and still get the same message. What a garbage system! Roku you get one day to resolve this or the streambar is going back for an Amazon Fire stick and Bose TV soundbar.
Did you manage to solve it? I have the exact same issue :/