Producing a Quiz Show from Multiple Locations?

Bloke in a box asks: "One of the pubs I help manage is putting on a quiz show. The landlady's two sisters also run pubs, so we have decided to do this quiz for charity (for the Tsunami disaster). At the moment I have: three pubs, three webcams, two laptops, a desktop, three microphones, three sets of 512kb broadband, three big screens, three projectors and one willing quizmaster. I'm aware of various remote admin software which will aid with this, but I'm wondering if there is conferencing software that might be a better fit for this, since I'd need the ability to control the communications between the pubs (like when questions need to be repeated, and so forth)." What other pieces of software would you recommend for such a production?

Comments

PHP

[DominoTree]

I'm sure you could set up something simple with PHP to synchronize the locations, although I don't know how effective it would be.