The number of people watching broadcast TV online has doubled in the past year, according to a new research report released by the Boston-based management consulting group Altman Vilandrie & Company.

The survey, conducted alongwith market research sample provider Peanut Labs, found that the age of the viewer determined his or her online TV viewing behaviour.

The study also showed that cable and satellite companies can use new technologies to attract consumers.

The online survey of 1,000 people found that about 16 per cent of 18-34 year-olds reported watching full TV episodes online daily, compared with 6 per cent of those aged over 35.

More online TV watching has yet not yet translated into cancellation of cable services, as only 3 per cent of those aged 18-34 have done so.

However, 25 per cent of the same age group say they "seriously considered dropping my subscription TV service because internet video services meet most of my needs".