I was going to link to his Youtube page, but it seems these videos are unlisted! Here are the 2 I have so far:
Harstem - Reynor, Byun, Oliveira, Clem in $42000 StarCraft II Tournament
Harstem - Serral, maru, Dark, Cure and more in $42000 StarCraft II Tournament
and the next: Harstem - Clem, MaxPax, ByuN and more in $42000 StarCraft II Tournament /w harstem
And another one! Serral, Maru, Reynor, MaxPax, Hero and more in $42000 StarCraft II Tournament /w harstem
They just keep coming: SERRAL vs MARU. REYNOR vs herO + More$42000 StarCraft II Tournament /w harstem