Currys & PC World stores are the first to sell Google Chromecast in the UK, with the device available to buy today.
The new TV dongle device by Google - which has a £30 price tag and was unveiled last year - won't be available in other UK physical retailers until the end of April.
Dixons Retail's Currys & PC World will also be the only UK retailers to stock Chromecast both in-stores and online.
Chromecast plugs into the HDMI port of a HD TV and lets viewers enjoy online video and music.
Chromecast users will have access to a host of content on YouTube, Google Play Movies and Google Play Music, plus apps like Netflix.
Chromecast is also device neutral meaning it works cross-platform between Android, iOS and Windows, so it can display content on any HD TV via tablets, laptops or smartphones.
Earlier this month Google revealed it had already sold millions of Chromecast units before launching the product in the UK.