The Big Bang Theory (2007) - S04E04 - 480p and 720p

480p:
http://www.megaupload.com/?d=96CNTU2I
http://www.megaupload.com/?d=BEGE03M4

720p:
http://www.megaupload.com/?d=U8EC6ZO9
http://www.megaupload.com/?d=N15U2YVU
http://www.megaupload.com/?d=7QY92DUC