NHK Hybridcast making broadcast interactive TV for sports and more!

“Hybridcast is an infrastructure system being developed by NHK, with a view to commercial use in 2013. This system combines broadcasting with the Internet, to enable a variety of TV-centered services.
“The manufacturers involved were Sony, Toshiba, Panasonic, Sharp, and Mitsubishi Electric. They’ve supported Hybridcast using slightly modified versions of commercially available TVs.”
“The service is achieved by running applications on HTML5, and we’re presenting various ways of enjoying the service by using it with a tablet. For example, if you’re watching a travel program, you can show where they are walking on a map. And if you’re watching a quiz program, you can take part by answering the questions.”