I don't know, but if you wanted to play that straight, then looking at the video, it's pretty darn high quality for Internet, so are we sure it actually is?
From there, you could easily tie in the buzzers to an online system that records a timestamp of when the buzzer lockout was removed, and when the buzzer was actually hit, and derive which person actually hit the buzzer first. IOW, you don't simply use who hit the buzzer first, but get the time lapse between buzzerOpen and buzzerPress.
