Online features will include a "Take Action" button to access information about social issues touched on in each program, customized to the viewer's locale and interests.

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The BBC has over 13 years of experience developing and evolving its red button services, which have brought viewers closer to the action at major events like Glastonbury, Wimbledon and Formula 1.

ENGADGET: BBC's Connected Red Button launches on TiVo, brings true web TV with one tap (hands-on)

Finally, a button on the butt of the shooter triggers the "hold your breath" action to steady an in-game weapon when pressed against your arm or shoulder.

ENGADGET: blogger-avatar

" "Thirteen million people pushing a button, sending an e-mail to their elected representatives, making a phone call, taking action, is a powerful, powerful lobbying tool.

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These tiny and relatively cheap devices have revolutionised the filming of action sequences - you just clamp them to a bike, a car, or even a surfboard, press the button and hope you capture something exciting.

BBC: Cameras to capture a road trip