Channel 4 has signed a deal with YouTube that will make the broadcaster's programmes available for free on the video-sharing site.
It is the first time a broadcaster has made its programmes available on the site. Channel 4 expects to increase its advertising revenue and audience size with the deal, which starts early next year.
YouTube announced last week it is now streaming over one billion videos every day, and the channel hopes the 20m UK YouTube users will boost viewing figures.
Channel 4 is not revealing the value of the deal but said that programmes would only be available in the UK and that advertising revenue would be split between the two companies.
Nikesh Arora, president of global sales operations and business development at Youtube's owner Google, said, "Channel 4 have been visionary in their online strategy and are consistently at the forefront of new uses of YouTube to engage their viewers and unlock new revenue streams. This significant new agreement brings Channel 4's great full length content to the YouTube community, helping Channel 4 to grow their online revenues and to continue to invest in the creation of high quality original content."
Andy Duncan, Channel 4's chief executive, said "Making our programmes directly accessible to YouTube's 20 million UK users will financially benefit both Channel 4 and our independent production partners and help bolster our investment in quality British content."