hod for providing audio-visual programming with alternative contentWO2010124171A2 *Apr 23, 2010Oct 28, 2010Telegent Systems, Inc.System and method for information delivery including delivery via video-based keyed or tagged contentWO2014026111A1 *Aug 9, 2013Feb 13, 2014Voss AllanSystems and methods for enhancing multimedia experienceWO2014191081A1 *May 14, 2014Dec 4, 2014Alcatel LucentProviding inf