(e.g. for # http://www.omroepwnl.nl/video/fragment/vandaag-de-dag-verkiezingen__POMS_WNL_853698 # video id is POMS_WNL_853698 but prid is POW_00996502) video_id = metadata.get('prid') or video_id # titel is too generic in some cases so utilize aflevering_titel as well...