The living room has proved to be a challenge for Google. The company which has been so successful in dominating so many of the screens we interact with on a daily basis - our computers, phones, and tablets - has perversely struggled for that most traditional of displays, the humble TV. Google TV was flabby and confusing; the axe fell on the Nexus Q before it even went on sale. Only the Chromecast has had any measure of success, and yet just when we thought Google might have a strategy, along comes a different platform again, Android TV. Running first on the Nexus Player, but set to spread to smart TVs from numerous manufacturers, it’s Google’s fourth lounge reboot, but is it really necessary?