BBC to put high-definition programmes on iPlayer

The BBC is to offer selected programmes in high definition (HD) on its iPlayer.

It will mean people using the online catch-up service will be able to stream and download programmes including Doctor Who, Kerwhizz, and Dragons' Den in better quality.

The BBC also said that it would be adding other new features to the site including a customised viewing window size and the full version launch of iPlayer for Mac and Linux users.

The updated iPlayer also comes with a tool that looks at a user’s internet connection and automatically switches the streaming options to give the best quality image.

Anthony Rose, head of digital media technology at the BBC, said: " Introducing HD streams users to enjoy BBC programmes in HD without a set-top box.

"The new adaptive bitrate technology and speed diagnostics page help optimise the viewing experience, while the resizable window gives users flexibility to switch between different quality streams, hopefully leading to a more satisfying experience overall."

There are also plans to roll out the HD streams to devices such as the Virgin Set Top Box and Playstation 3, but no date has yet been set.

However, broadband comparison site Broadband Choices warned that the large file sizes used by the HD content on the iPlayer service could result in them exceeding their download limits or breaking their internet service provider's fair usage policy.

"The launch of services such as the BBC iPlayer has dramatically changed the way consumers use the internet.

"This change in online behaviour is having a direct impact on their download limits. If exceeded, consumers can find that their service becomes frustratingly slowed at peak times or they get a nasty shock when they receive their next broadband bill," the company said.

It advised people to use a download monitoring application to keep tabs on their usage and try to download content outside of peak hours, when limits are often not applicable.