What happened: a nationwide cable TV frequency change
Since 2025 a major reorganization of cable TV and radio frequencies has been underway, continuing into 2026 and affecting millions of cable households across Germany. The frequency change aims to standardize channel allocation across the cable network, free capacity for faster internet connections and reduce technical disadvantages such as delays in live broadcasts. The operator began implementing a fully uniform channel lineup on 8 July 2025, and the old structure ran in parallel until the last changes in June 2026. As a result, many TV and radio channels in regional cable-fibre networks are being moved to new frequencies.
The work is done region by region from local technical sites. Examples from the rollout include night-time changes such as the switch in Oldenburg on the night of 26–27 May 2026, other planned nights like 20–21 May 2026, and numerous staged dates in regions such as Hannover where the rollout started on 28 October 2025 and continued with specific dates into April and May 2026. In some places customers were warned that channels could briefly disappear or the screen could go black around the change window.
Why the frequency change matters
The reorganization is not just a shuffle of channel numbers. It is intended to:
- Standardize the channel layout across the entire cable network so devices can update more reliably,
- Free up capacity to support higher internet speeds and improved broadband services,
- Improve signal handling at headends to reduce delay for live events, notably broadcasts from major public channels,
- Introduce modern channel numbering standards that let receivers track moved channels automatically.
NorDig-LCN and technical improvements
One key technical step is the introduction of the NorDig-LCN standard across the cable network. NorDig-LCN defines how Logical Channel Numbers are presented and updated to receiving devices, so when a channel moves to a new frequency the receiver sees the change and follows it to the new program slot. Parallel technical work on headend and transmission paths is also intended to reduce the time delay in live TV, meaning sports and other events should arrive with fewer seconds of lag for many viewers.
What cable customers need to do
The central practical consequence for viewers is simple: check your TV and, if needed, run a channel scan (rescan channels or perform a sendersuchlauf) after the change. How this works depends on your hardware and its age.
Before and during the night of the change
- Watch for letters, emails or local notices announcing the exact date for your area.
- Do not unplug your TV, set-top box or cable router during the planned night of maintenance; many devices can update automatically if left powered.
- Expect short, temporary interruptions to TV, internet and fixed-line phone services in some areas while regional nodes are adjusted.
After the change: step-by-step actions
- First, switch on your TV or receiver and check whether channels appear as usual.
- If channels are missing or the screen is black, run a manual channel search / automatic channel scan from your TV or receiver menu.
- After a successful scan, review and adjust favorite lists and any scheduled recordings, because some programs may have moved to new channel numbers.
- If problems remain, consult the regional channel lists on the operator’s help resources or technical helpdesk and compare old and new frequencies where available.
- If you still cannot restore channels, contact customer support rather than assuming a hardware fault.
Which devices update automatically and which need manual action
Many modern devices handle the change automatically. Official and recent receivers and set-top boxes—including the operator’s current boxes, devices inherited from previous regional providers, and many boxes from third-party providers—will often find moved channels without user intervention. In contrast, older televisions and legacy receivers typically need a manual rescan because their stored channel lists no longer match the actual frequency layout.
Automatic updates
Devices that support NorDig-LCN and recent firmware updates generally follow channels to the new slots automatically and may perform a background search. This avoids the need to rebuild favorites after every small lineup change.
Manual rescans and additional steps
On older TVs and receivers you will usually need to initiate a channel scan by going into the device menu and starting a full search. Depending on the model you may also need to:
- Recreate favorites or favorites lists,
- Reprogram scheduled recordings to the new channel slots,
- Check the cable router if internet or on-demand services are affected after the change.
Receiver replacement and longer-term changes
The frequency reorganization coincides with a push to replace older receiver hardware. A migration program is planned that will replace hundreds of thousands of legacy receivers with a newer model (for example the currently offered home box). The replacement program is scheduled to continue through the coming years and affects models such as older branded boxes and earlier generation cable receivers.
For customers this means many will receive replacement hardware automatically or be asked to follow return and exchange instructions sent by post. New boxes typically support modern features such as NorDig-LCN and will handle future frequency shifts more smoothly. New subscription pricing for some hardware and services is part of the change for new customers, with temporary introductory rates announced for initial months followed by a regular monthly price.
Where to find help and regional information
If you experience missing channels after a regional frequency change, the recommended first step is a manual channel scan on your TV or receiver. If that does not fix the issue, consult the operator’s cable helpdesk and regional channel lists to compare frequencies before and after the change. Regional news outlets and local notices often report exact night windows and which towns are affected, which can help explain temporary outages.
Additional tips and final advice
Keep an eye on mailed or emailed notices about hardware exchanges and exact regional switch dates. Leave equipment powered during the night of a planned change to allow automatic updates. If you rely on recordings, check them after the scan and reprogram if necessary. For technically experienced users, regional DVB-C frequency tables and helpdesk lists allow precise manual configuration of devices if required. Overall, a quick channel rescan in the morning after the local change will resolve most issues for most households.
