Hardcore Pawn Chicago, S01E15 in AVI format, for those who don't like the MKV format.  

BTW, a video program like VLC (available for free for both Windows and Mac OS X, see videolan.org) can play both the MKV and AVI formats.

Description: "Diamonds are Forever"  A customer tries to sell Royal a bag of diamonds; Wayne thinks they may be connected to the legendary 'Marlborough Diamond' heist pulled off by the Chicago mob.