ACMA Darwin TV plan: Nine, Channel 7 and 10 transmitter changes explained – The Australian Communications and Media Authority (ACMA) is consulting on a change to Darwin’s television licence area plan that would formalise the sharing of commercial TV transmitters. The technical proposal follows changes already made to the region’s broadcast line-up on 14 October.
For viewers, the important distinction is timing: ACMA says the proposed licence variation itself would not remove more programming or reduce the current reception quality. However, the broadcasters’ earlier implementation did end eight secondary services and moved three other channels to MPEG-4, which some older televisions may not support.
What ACMA proposes for Darwin television
Darwin has three commercial television licences, but ACMA proposes that their services be carried on two multiplex transmitters in each of Darwin, Darwin City and Batchelor. Territory Television, owned by WIN Corporation, supplies Nine Network programming; Southern Cross Media Group’s Regional Television supplies Channel 7 programming; and Darwin Digital Television, their joint venture, supplies Network 10 programming.
The three licensees asked ACMA on 7 September to consolidate their transmitter licences. The arrangements began operating on 14 October: Nine and Network 10 programming share one transmitter, while Channel 7 and Network 10 programming share another at each of the three locations. ACMA’s draft plan would allot two sets of broadcast frequencies to pairs of licensees and leave the third set unallotted. It proposes that the legal changes take effect retrospectively from 14 October.
ACMA says the proposed variation would regularise the arrangements already in place, reduce broadcasters’ capital and operating costs, and use spectrum more efficiently. It does not propose a further reduction in the number of services now available or their current reception quality.
Which channels changed on 14 October?
ACMA says the broadcasters ceased providing the following secondary services as part of the earlier transmitter change:
- Network 10: SBN, Gecko, YouTV and Ten SD.
- Nine Network: 9SD, 9Gen SD, 9Go SD and Extra.
The coding of 10 Comedy SD, 10 Drama SD and 9Life SD changed from MPEG-2 to MPEG-4. ACMA warns that viewers with older TV sets may need to upgrade their devices to receive the recoded services. It says no further programming changes would result from approving the proposed licence-plan variation or making the consolidation declarations.
This is therefore not a proposal to shut down Nine, Channel 7 or Network 10 in Darwin. It is a regulatory consultation about how the remaining services are transmitted, following the separate changes already made by the licensees. The Darwin TV1 licence area has a population of 141,375 under ACMA’s licence-area determination.
How to have a say
ACMA opened the consultation on 23 October. Submissions close at 5pm AEDT on Friday 13 November 2026. The regulator has published both the consultation paper and the draft legal instrument, and accepts online submissions through its public consultation page.
For more TV Central ACMA coverage, head here. Read ACMA’s Darwin television consultation and submission details.
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