A three-dimensional electronic program guide (EPG) is displayed as multiple two-dimensional areas within a three-dimensional television viewing environment. Each two-dimensional area contains a particular category of EPG data. A viewer navigates the three-dimensional EPG using an input device, such as...http://www.google.fr/patents/US7511710?utm_source=gb-gplus-shareBrevet US7511710 - Three-dimensional program guide
