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Wenvoe transmitter power test

17-18 November 2009: power tests are taking place at the Wenvoe transmitter on these dates, which means that analogue TV viewers in South Wales will lose BBC Wales services for a period in the early morning.

• Tuesday 17 November, 1.20-6am: BBC One Wales and BBC Two Wales
• Wednesday 18 November, 1.10-6am: BBC One Wales

BBC One regional version changes on Sky

19-29 October 2009: Several broadcasters, including the BBC, are making changes to a few UK postcode areas in their postcode databases. This is because some areas have been receiving the wrong BBC One regional version. If you are in one of the affected areas, you will now receive the correct BBC One version for your region. If you want to watch another regional version, they are all available on the Sky EPG - see the BBC channel numbers on Sky.

If you use Sky+, you may need to delete your planned BBC One recordings and reselect them from channel 101.

Problems with some Freeview digital set-top boxes: box no longer working; channels missing; channels moved to the 800s

Recent changes to some transmitters could mean that a small number of Freeview digital set-top boxes, particularly older ones, no longer work. In other cases, some channels may have gone missing or appear to have moved to channel numbers in the 800s in the electronic programme guide (EPG).

Most homes will be unaffected by the transmitter changes, but if you are having problems, first try retuning your set-top box.

If BBC and ITV channels are missing from their normal channel numbers and have moved to the 800s in the EPG - if, for example, BBC One is on channel 801 - this may be solved by an over-air download (OAD). For more details and instructions on how to receive the download, please go to the Freeview Help page.

After digital switchover, some older set-top boxes may require a software upgrade before they will update the channel list. Software upgrades are downloaded automatically to boxes, and you can find out if a download is scheduled for your particular box on the Digital TV Group website.

After taking these steps, if you are still having problems, please contact the manufacturer or your retailer for more information. Please note that some box manufacturers are no longer in business.

In a few cases, you may have no choice but to replace an old set-top box with a new model.

The changes to the transmitters are being made by DMOL, the company that manages the digital terrestrial television multiplexes. The changes are necessary because there are now more channels and interactivity than when Freeview was originally launched. Some Freeview boxes will no longer be able to function as a result of these network changes.

I've recently retuned my set-top box and I've lost some of my channels - can you help?

We suggest you contact your manufacturer for further advice if, after performing a retune, you have any problems obtaining channels that have moved to another multiplex.

I already have a non-Sky satellite receiver. Can I receive the new Freesat channels?

The BBC and ITV launched Freesat, the free-to-view satellite service, on 6 May 2008. If you have a non-Sky satellite receiver, the channels are the same as those you can already receive. However, for the full range of on-screen programme information and interactivity you need a Freesat set-top box. And to view BBC high-definition (HD) transmissions, you need a compatible satellite HD receiver. For more information about the service, please go to Freesat.

Why do I have London news on BBC One instead of my local region?

Local news and regional programming is a complex business and sometimes doesn't go entirely to plan. If there is a problem and a local news bulletin is missed or dropped, BBC One defaults to the London region programming, and this is why you may occasionally see London news instead or your own region.

If you watch the Breakfast programme, BBC One and BBC News show the same programme, but for technical reasons only BBC One can provide regional news bulletins. At these times, BBC News shows London news.