Somewhere between 2 and 2.5 hours, on the live stream. If you watch a game back though, particularly on NBA League Pass (which I have), you can fast forward through long refs decisions, ads are taken out, there's no half-time show, you can skip ahead five seconds to skip FTs if there are a lot of them, stuff like that. When you do that, a 48 minute game takes maybe an hour and ten to watch, sometimes a bit less.