It's still going. You can check by visiting the live stream page in a browser that doesn't support the stream (e.g. Chrome), where you'll see an error saying that your browser doesn't support the stream. The error will go away once the stream has ended I imagine.Is the event over yet? It's been 2 hours
It's usually 3-4 hours after the end but it varies. I'm in the UK, 6 pm start, usually 8pm finish and it's usually up by midnight.