He explained the use of g-suits, designed to prevent pilots blacking out during manoeuvres.

BBC: Flt Lt Jon Egging

The intent of the law was actually to prevent owners from blacking out games that were sold out.

FORBES: Blackouts a Black Eye on Face of NFL

First off, blacking out a game does not cause it to sell out.

FORBES: Blackouts a Black Eye on Face of NFL

For 24 hours, to raise awareness, we are blacking out Wikipedia.

BBC: Wikipedia joins blackout protest at US anti-piracy moves

And, with a power shortage blacking out large parts of the country for two hours each day and unemployment rising sharply, there are plenty of other things to think about.

ECONOMIST: Chile and Pinochet

The current blackout policy dates back to 1973 when President Nixon signed a law into effect that prevented owners from blacking out games unless tickets remained 72 hours prior to the game.

FORBES: Blackouts a Black Eye on Face of NFL

In the United States there was outrage over proposed anti-piracy legislation, Pipa and Sopa, which culminated in a concerted global campaign to highlight the issues by blacking out sites like Wikipedia for 24 hours.

BBC: The internet is angry - is it winning?