If you've wanted to (legally) watch NBC's live broadcasts away from home, you're in luck... more or less. The media giant is offering live TV streams on its website starting today, and mobile app viewing is due in early 2015. Unfortunately, it's not the independent service you may be looking for. Unlike CBS and HBO, you'll need a conventional TV subscription (as with WatchABC) to tune in online -- not surprisingly, Comcast (NBC's parent) would like to keep you paying for cable programming. With that limit in mind, this is still big if you've ever wished that you could watch that new episode of Constantine without retreating to the living room.