The rising popularity of online videos has started to impact on traditional TV, according to a BBC/ICM poll.

The survey, of 2,070 people, found 43% of Britons that view video on the web or mobiles at least once a week watch less TV as a result.

Other findings include:

• Three quarters of users watch more TV online or on mobiles now than a year ago.

• Just 9% of internet users go online to view video clips regularly.

• 28% of the 16-24 age group watch online video more than once each week, while just 4% of over-45s watch online video.

• 13% of respondents watch online video occasionally, while a further 10% said they expect to start in the coming year.

• Two-thirds said they did not watch video online and did not plan to within the next 12 months.

With British TV companies beginning to follow the example of their US counterparts by offering whole TV shows for viewing online, and the continued popularity of YouTube and other video sites, the online video boom looks set to continue.

With the growth of online video, the online video advertising market in the US is predicted to be worth around $410 million this year, with this figure predicted to rise to $3 billion by 2010.