The average UK viewer watched 4 hours, 1 minute of linear TV a day in 2012

"New figures from BARB show that TV viewing in the UK is continuing to expand as people watch additional content on-demand via TV sets, tablets, smartphones and laptops - yet linear TV still rules the roost.
In total, the average UK viewer watched 4 hours, 1 minute of linear TV a day in 2012 - the year when British television became 100% digital following analogue switch-off.
In 10 years, the linear TV viewing average has increased by 27 minutes (23%). BARB further revealed that last year 89.8% of linear TV was watched live, though the BBC coverage of the Olympics did not significantly affect commercial viewing figures overall.
However, the figures do not account for non-television set devices, such as ITV Player, BBC iPlayer and 4OD. According to data supplied to Thinkbox by UK broadcasters, in 2012 people in the UK watched an average of just 3 minutes per day of audio-video content online, a fraction of the linear TV average."

Source:  MediaTel, 19th February 2013