The brave new world of live television is upon us, and it comes in three forms: PlayStation Vue, Sling TV, and DirecTV NOW. Having multiple products to choose from is never a bad thing, but it does require more leg work. Which service has the features you can't live without? Is there some hard-to-find fine print you should know about? Does the service you're leaning toward offer the best value for your money? We've answered all those questions and more.