The implementation of new digital technology is changing the national and international broadcasting structures. This thesis will examine the current situation of the Norwegian public service broadcaster NRK. The main objective of the study is to assess and analyse commercial activities as a competitive strategy, which includes a study of political processes leading towards a commercialisation of the NRK. The research project also analyses the establishment of the NRK's commercial subsidiary NRK Aktivum, as well as concrete activities and business units. Parallels are drawn towards the commercial subsidiaries of the broadcasters BBC and ABC, respectively in Great Britain and Australia, due to their strategic and organising similarity with NRK Aktivum. The issue of the thesis will be discusses in both an economic and a cultural perspective, to elucidate the tension between business activities and public service broadcasting, two activities which is expected to be governed by their own distinct logics.