A few months ago I saw a demo, one this web site or another, of military aircraft lined up at the end of the runway, they were setting in line, in the hammer head, shortly after the first aircraft started to taxi, the second one started to taxi, the third one, etc, they all taxied to the end of the runway, lined up in staggered formation, one setting slightly aft of the other, until they were all ready to take off.
The first Aircraft started its takeoff roll, the second started shortly after, etc. until they were all rolling for takeoff.
Where can I find this demo?

I wonder if you're referring to Cloud9's Frecce Tricolori and Rivolto AB http://www.avsim.com/pages/0406/Frecce/Frecce.htm ?