18Open narrowcasting services

18  Open narrowcasting services  (1) Open narrowcasting services are broadcasting services:  (a) whose reception is limited:  (i) by being targeted to special interest groups; or  (ii) by being intended only for limited locations, for example, arenas or business premises; or  (iii) by being provided during a limited period or to cover a special event; or  (iv) because they provide programs of limited appeal; or  (v) for some other reason; and  (b) that comply with any determinations or clarifications under section 19 in relation to open narrowcasting services.  (1A) A HDTV multi‑channelled commercial television broadcasting service (within the meaning of Schedule 4) is not an open narrowcasting service.  (1AA) A SDTV multi‑channelled commercial television broadcasting service (within the meaning of Schedule 4) is not an open narrowcasting service.  (1B) A HDTV multi‑channelled national television broadcasting service (within the meaning of Schedule 4) is not an open narrowcasting service.  (2) A SDTV multi‑channelled national television broadcasting service (within the meaning of Schedule 4) is not an open narrowcasting service.  (3) A digital commercial radio broadcasting service is not an open narrowcasting service.  (4) A digital community radio broadcasting service is not an open narrowcasting service.  (5) A digital national radio broadcasting service is not an open narrowcasting service.