As the owner of chromecast, an Apple TV, and numerous raspPis I am frustrated by my inability to play movie X on Apple on the TV with chromecast and vice versa

Until this problem is solved (and I am trying hard not to learn the ins and outs) Remote TV apps are going to stay niche.

Each time i think about how I can't play the iTunes movies I paid for on the SkyTV and vice versa I feel ripped off - and don't remind me of the DVDs

When I can move a tv show from th set to th set as easily as Tom Cruise doing his Minoroty Report thing this is never going to fly.