24th May, 2026
Channel 7 Upgraded to MPEG-4 in Melbourne – What It Means for Your TV and What to Do If You’ve Lost Channels
If you’re in Melbourne and Channel 7 has suddenly disappeared – or you’re seeing a black screen with sound but no picture – you are not alone, and your antenna is almost certainly not the problem.
On Friday, 27 February 2026, Seven completed its broadcast technology upgrade in Melbourne, removing MPEG-2 technology and replacing it with MPEG-4. Melbourne was the final metropolitan market to make this switch, following Brisbane, Perth, Adelaide, and Sydney. Under the changes, Channel 7, Channel 70 and Channel 71 are now broadcast in HD using MPEG-4, while 7two has also moved to MPEG-4 HD.
For most Australians with a modern television, this change happened automatically or required a simple retune. For others — particularly those with older televisions or set-top boxes — it has meant losing access to Channel 7 entirely.
Why You’ve Lost Channel 7
The reason is straightforward. Older digital TVs may be incompatible with the new MPEG-4 format. Older models typically only support MPEG-2, the older compression standard, while newer digital TVs are designed to handle MPEG-4.
All major recognised brands of televisions, set-top boxes and Personal Video Recorders (PVRs) purchased since 2009, including any devices bearing the Freeview logo, support MPEG-4, but those bought prior to 2009 may not.
There are two ways this shows up on your screen:
Black screen with sound. You can hear the programme but the screen is completely black. This is the most common symptom of an MPEG-4 incompatibility — channels may appear in the channel list, however the picture is black and the sound may or may not be heard.
Channel simply missing after a retune. The channel no longer appears at all after an auto-scan.
Some older receivers known to be incompatible include Schaub Lorenz Televisions, Baumann Meyer Televisions, and NEC and Sherwood (re-badged NEC) televisions. However any TV purchased before 2009 — regardless of brand — should be tested.
Step 1 – Try a Retune First (Free, Takes 5 Minutes)
Before assuming you need new equipment, perform a full auto-scan retune through your TV’s settings menu. Most TVs have an option to automatically re-scan channels within the TV menu. In many cases, the channel changes will appear after completing this process.
The process varies by TV brand but is generally found under:
- Settings → Channel Setup → Auto Scan (Samsung, LG)
- Menu → Setup → Digital Tuning → Auto Tune (Sony)
- Home → Settings → TV → Channel Scan (Panasonic)
If you are unsure how to retune your specific TV, consult your TV’s manual or check the manufacturer’s support website.
If a retune brings Channel 7 back clearly — you’re done. The upgrade simply required your TV to update its channel frequency map.
Step 2 – If Retune Doesn’t Fix It: Your Options
If retuning doesn’t resolve the issue, your TV or set-top box does not support MPEG-4, and you have three practical options:
Option A: Purchase an HD Set-Top Box
If your TV cannot decode MPEG-4, the simplest fix is to add an HD set-top box, which allows your TV to receive the new channels without replacing the TV itself. A compatible HD set-top box connects between your antenna cable and your TV, handling the MPEG-4 decoding on behalf of the older television. Basic HD set-top boxes are available from electronics retailers from approximately $40-$80.
This is the most cost-effective solution if your TV is otherwise working well and you don’t want to replace it.
Option B: Upgrade Your Television
Upgrading to a modern TV will solve the problem permanently. Any television purchased from 2009 onward should be MPEG-4 compatible. A new television also brings improved picture quality, smart TV features, and compatibility with future broadcast upgrades – Channel 7 is just the first to make the jump to MPEG-4, but it’s highly likely that other commercial broadcasters will follow suit in the near future.
Option C: Stream via 7Plus
If you need an immediate interim solution while sourcing new equipment, you can stream or catch-up on your favourite programs via 7plus.com.au or the 7plus app on your mobile or TV devices via the internet. This is not a permanent replacement – streaming introduces delay, uses data, and depends on your internet connection – but it keeps you watching while you sort the equipment.
What If You’ve Done All of This and Still Have No Channel 7?
If you’ve retuned, confirmed your TV is MPEG-4 compatible, and Channel 7 is still absent or showing a poor picture, the problem may lie elsewhere in your antenna system rather than with the upgrade itself.
If your TV still has no Channel 7 after trying retuning and all the easy checks, it’s time to call a proper digital antenna installer. A licensed technician can test your antenna, cables, and signal with professional equipment and tell you exactly what’s causing the problem, then fix it on the spot — whether it’s a new MPEG-4 set-top box, a booster, a 4G filter, or a full antenna replacement.
Common antenna-related causes include:
Aged or corroded antenna. An antenna past its useful life may be producing signal that was previously sufficient for MPEG-2 decoding but falls short of what MPEG-4 requires. MPEG-4 is more efficient but still requires adequate incoming signal to decode reliably.
Damaged or aged coaxial cabling. Signal loss through old or damaged cable that was tolerable with MPEG-2 may now fall below the threshold for consistent MPEG-4 reception.
Signal distribution issues. If the signal is being split to multiple TVs through an older passive splitter or amplifier system, one or more outlets may not be receiving sufficient signal for MPEG-4 decoding.
Mr Antenna’s licensed technicians carry calibrated signal meters to every job and can diagnose the exact cause of your Channel 7 issue in a single visit – whether it’s the broadcast change, your equipment, or your antenna system.
What About Regional NSW and Victoria?
Seven is also upgrading broadcast technology across regional NSW and Victoria over the coming months, with the same removal of MPEG-2 in favour of MPEG-4. If you’re in regional Victoria or NSW and haven’t yet experienced any changes, be aware that the upgrade is rolling out to your area and the same guidance applies – retune first, then assess your equipment’s MPEG-4 compatibility if channels don’t appear.
