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This is the EUROPEAN version of the House Theme. Because of the copyrights, they weren't allowed to use 'teardrop' in the european version, so they composed a similar sounding version of 'teardrop' called 'house'. It was composed by 'Scott Donaldson' and 'Richard Nolan'. In Germany, this intro is only used in the first season.
As it seems, this video is used in most parts of Europe. The USA have the original Massive Attack intro.