Interactive television

In the 1950s, there were limited efforts to provide an illusion of interactive experience, most overtly with Winky Dink and You, which encouraged viewers to draw on a vinyl sheet they would attach to a television set.

In early 1994, British Telecommunications (BT) began testing an interactive VOD television trial service in the United Kingdom.

[7] Interactive TV includes programs that directly incorporate polls, questions, comments, and other forms of audience response back into the show.

During the 2012 Australian Open, viewers used the app to suggest questions for commentator Jim Courier to ask players in post-match interviews.

The system synchronized online services with television broadcasts, grouping users by time zone and program, so that all real-time viewers could participate in a chat or interactive gathering during the show's airing.