The backing track for the Sony Bravia ad is “Heartbeats” by Swedish band “The Knife”, covered by José Gonzales.

I finally found the original, and I swear it’s like taking a step back into the 1980s: http://hype.non-standard.net/search/heartbeats/1/ – load the little music player, track 5. There are several versions, it’s a bit hit and miss to be sure which is the “original”.