I bought a 2015 Philips Android TV (49PUK7100) just because it was Android and thinking I would be free to install apps and have better experience.
But I learned that Philips removed the "Unknown Sources" setting and it's not possible to enable it. I wish Philips learns from it's mistakes, like trying to lock down Hue light bulbs etc.. They should embrace openness, that's what Android stands for. I recommend anybody who is searching for a new Android TV to look at Sony and don't even come close to Philips TVs.
Dumb tv + latest tv box is the way to go imo.