Lifted from THEBOX. Thx to the OP

SITCOM: The Big Bang Theory
On: E4 (28)    
Date: Saturday 7th April 2012 (Already shown)
Time: 19:30 to 20:00 (30 minutes long)

It All Started with a Big Bang. Special Episode 2.
Celebrating the 100th episode of The Big Bang Theory, Rick Edwards looks back at some of the US sitcom's most hilarious and memorable scenes and talks with the cast and crew on set in Hollywood. The actors share their favourite moments and reveal a few secrets about the making of the show.
(Repeat, Subtitles, 2007, 3 Star)

General           : The.Big.Bang.Theory.It.All.Started.With.A.Big.Bang.WS.PDTV.XviD-thebox.Penna
Format            : AVI at 1 144 Kbps
Length            : 195 MiB for 23mn 53s 208ms

Video #0          : MPEG-4 Visual at 1 006 Kbps
Aspect            : 624 x 336 (1.857) at 25.000 fps 

Audio #0          : MPEG Audio at 128 Kbps
Infos             : 2 channels, 48.0 KHz