From another hands-on Apple TV review; also see Mossberg: The Apple TV Gets Smart (Re/code)
"What’s holding back the Apple TV from being the only device most of us need—just like every other streaming box and smart TV—is content. The owners of some popular shows, including big networks and sports leagues, still haven’t been convinced to sell it outside a cable subscription.
People looking to cut cable entirely still have to make compromises, but there are six streaming apps that have become essential: Netflix, Hulu, HBO Now, YouTube, Amazon Video and Sling TV (which streams some live cable TV networks for $20 a month). On its first day, the new Apple TV won’t have the latter two.
Apple says its TV app store is open, including to rivals. Amazon made a stink a few weeks ago about not selling the new Apple TV because it wouldn’t “interact well” with its video service, but it’s Amazon’s responsibility to make an Apple TV app. (An Amazon spokeswoman declined to comment.)"Apple TV Review: A Giant iPhone for Your Living Room - WSJ