Depends which ad you mean..there's an advert that has been played for about 6 months..which is a track from the soundtrack to Virgin Suicides by French band Air......but I've just seen a brand new Sony advert on Sky tonight...it's a track by Death In Vegas called Hands Around My Throat" which can be found on their 2002 album "Scorpio Rising"
Both of those are excellent tracks but it's not the one I'm looking for. What I've found is that it's actuall an advert for Sony's VVega engine technology for their TVs. It shows all types of devices like digital satellite, Sony PlayStation and DVDs players being used on the TV.