Some 91 percent of parents with a tablet computer say their children use it or have one of their own, an Ofcom report suggests.
The watchdog's "State of the Nation" report found 41 percent said their children use it every day and 17 percent have children who use it more than once a day.
- 71 percent use the tablet to play video games
- 44 percent watch short video clips
- 40 percent browse the internet
- 37 percent watch TV or films
The traditional living room has been transformed into a digital media hub where the household watches television while multi-tasking via tablets and smartphones, Ofcom said.
Households are increasingly reverting to just one television, and 91 percent of adults tune in to the main set in the living room at least once a week, according to Ofcom's annual "State of the Nation" report.
A quarter of viewers regularly partake in "media meshing" - using devices to communicate about the programme they are watching.
Of those surveyed, 49 percent said they engage in "media stacking" to carry out completely unrelated activities such as social networking or online shopping.
The huge growth in take-up of smartphones and tablets is creating a nation of media multi-taskers, an Ofcom report published today suggests.
Tablet ownership is driving the use of second screens, and enticing people to the main television room, according to the annual study.
More than half of tablet owners - 56 percent - use their device for viewing audiovisual content, and half of these do so while in the living room.
A fifth of families with a tablet said they watch different content on different screens while in the same room all or most of the time.
Tablet ownership has more than doubled in the past year alone, with 24 percent of homes now owning at least one of the devices, up from 11 percent the year before, according to a report by Ofcom.
More than half of adults - 51 percent - own a smartphone, up from 27 percent two years ago.
Two-thirds of tablet users say they use the device every day, and 95 percent use it at least once a week.
Ofcom said it has opened an investigation into Sky's "alleged abuse of a dominant position" regarding the wholesale supply of Sky Sports 1 and 2 - its flagship sports channels.
BT wants to offer Sky Sports via YouView set-top boxes to complement its own newly-launched sport offer.
But BT said Sky will not allow the channels to be broadcast over BT boxes unless it offers its rival wholesale access to its own BT Sport channels in return.
Ofcom said it will "consider whether Sky has abused a dominant position under UK and/or EU competition law".
The regulator added it will decide by next month whether to grant "interim relief" - which could temporarily give BT access to Sky Sports.
Ofcom has launched an investigation into I'm A Celebrity ... Get Me Out Of Here! after the seven-year-old daughter of Eastenders star Charlie Brooks was involved in a stunt on the show.
Brooks, who was later crowned Queen of the Jungle, and darts player Eric Bristow were tasked with choosing between doors that either had a treat behind them or a "game over" sign.
What Brooks didn't know is that her daughter Kiki - who she had not seen for 18 days - was standing a few feet away from her behind one of the doors.
When the door with the "game over" sign was picked, Brooks returned to camp without being reunited.
Television regulator Ofcom received 66 complaints, while Brooks later called it "heartbreaking".
She said, "I signed up for this show, but Kiki didn't. I didn't want her to be so upset. I had no idea this was happening. It was my lowest point".
Ofcom will investigate whether ITV took due care to protect Kiki's welfare and whether the potential for offence caused by scenes of Brooks appearing distressed following the stunt were justified by the context.
A spokesman for I'm a Celebrity said at the time that a senior producer had seen "Kiki afterwards and she was fine", adding, "Kiki and her grandma come to the jungle every day with the other friends and family, so the experience wasn't as out of the ordinary as it might look".
Peter Fincham, ITV's Director of Television, said today that the Phillip Schofield incident was "something we shouldn't have done."
Speaking to ITV News UK Editor Lucy Manning, Mr Fincham said that Mr Schofield "realises his mistake, he apologised for it fully and extremely quickly."
"I think he's under no illusions that this was a lapse in ITV journalism," he said.
"In live television, all sorts of things can happen. That doesn't mean they should happen," he said, adding that he had received a letter from Lord McAlpine today to which ITV would respond "very quickly."
I pressed Peter Fincham on what disciplinary action had been taken by ITV.
He wouldn't go into to detail but said Phillip Schofield would stay on the air.