Quiz programe

hi.i m organising a quiz show.so i want 2 connect my laptop to projector so whateve the question it figures on the screen n at the same time there will b 4 teams participating in the show.and all of them will have the laptop n i want whtever blinks on the screen should reflect to the participants laptop and he can answer the question from his given laptop.....so how can i arrange this quiz need sum ideas guys.....hope 2 get it soon.....waiting for ur suggestions....