Pardon me if this has been discovered before, but upon re-watching some of the Kennedy episodes available on YouTube, I finally took notice of how the buzzers worked on the original run of Split Second.
The first player can interrupt Tom's question, as we all knew. It would appear -- based on when the names light up, the facial expressions of the players, and the repeated tapping of the buttons you can hear -- that the buzzers are only enabled again when Tom says the name of the first player to ring-in. The buzzer is then enabled for the third player when the second player's name is acknowledged aloud. Does this seem right?
-Jason