With the recent proliferation of new channels on the Apple TV, Cupertino's set-top box has gone from being a simple way to consume online content to offering an embarrassment of riches. More than 25 streaming content sources are available on the device, and if riding herd on them isn't yet as daunting as scrolling through the channel guide on your cable box, it's approaching that level of complexity.So it's time for Apple, the company vaunted for its elegance and adroit handling of interfaces, to rethink the way users interact with its living room device--especially if the company hopes to make the living room its next major battleground.Here are half a dozen steps Apple could take to improve the way we browse and watch content from the comfort of our couches.