Between Euro 2012 and Olympics sports fans will watch more than 24 hours of television during the 17 days of the Olympic Games, according to new research.
A report, commissioned by digital television service Freeview, found the average viewer will watch 97 minutes a day every day for the duration of the event.
And more than eight million people will share their experience online with more than 180 million Olympic-inspired tweets expected to be sent during the games.
The report, called Summer on the Sofa, shows almost three-quarters (72pc) of viewers will watch this summer's events including the Euro 2012 football tournament on television, despite the growth in smartphones and tablets.
More than half (57pc) said they will tune in with their partner and a quarter (25pc) will be watching with friends.
Ilse Howling, managing director of Freeview, said: "This unprecedented summer of sport promises to be the most exciting in our lifetime as the nation joins together, in living rooms up and down the country, to enjoy the epic moments as they unfold.
"Despite the growth of smartphones and tablets in recent years, the Summer on the Sofa report highlights the importance of the shared viewing experience as we look forward to watching landmark sporting events."
:: YouGov sampled 2,010 adults online between May 21 and 23.