Apple TV's continuing expansion rolled on today with the addition of PBS and Yahoo's Screen channel. The streaming box has been steadily adding channels from the likes of Disney and ESPN over the last year.
PBS fans eager to watch the channel on Apple TV will first need to sign in using their Facebok or PBS's registration system, then identify the PBS affiliate for their area. But don't get your hopes up about binge watching Downton Abbey just yet. The service doesn't offer live streams, and according to AllThingsD, PBS plans on cycling out content based on when it airs on broadcast stations. If you want to get your Abbey on you're still go
