In relation to a service, the relevant date for the purposes of section 303 is—
in a case to which any of subsections (2) to (4) applies, the date given by that subsection; and
in any other case, the date (whether before or after the passing of this Act) when the provision of that service began or begins.
In the case of a service the provision of which began before the television transfer date but which is not—
a service provided by S4C,
a licensed public service channel, or
a digital television programme service,
the relevant date is the date of the coming into force of this section.
In the case of—
a Channel 3 service the provision of which began before the date of the passing of this Act, and
Channel 4 and S4C Digital,
the relevant date is 1st January 2000.
In the case of Channel 5, so far as it consists of a service the provision of which began before the date of the passing of this Act, the relevant date is 1st January 1998.
OFCOM may determine that a service provided by a person is to be treated for the purposes of section 303 and this section as a continuation of a service previously provided by him.