broadcasting service
means any service which consists of broadcasting and which service is conveyed by means of an electronic communications network, but does not include—
a)a service which provides no more than data or text, whether with or without associated still images;
b)a service in which the provision of audio-visual material or audio material is incidental to the provision of that service, or
c)a service or a class of service, which the Authority may prescribe as not falling within this definition;