Interactive television ...
was a niche business in Germany, until 2009. beewee had the honour of participating in a prototype project (ARD Online-Kanal), from its start 1997 until its termination 2008. I was coding features and assisting the technical processing on a freelancer but full time basis. [german »Documentation«]
Since 2009 HbbTV has accomplished a quasi-standard status. Read on for further information on the Wikipedia site or HbbTV.org.
One of beewee's HbbTV applications (2014): »ARD Foto-Quiz«.
(To navigate in »Foto-Quiz«, use arrow and enter keys!)