US Patent 8707382 Synchronizing presentations of multimedia programs

Synchronization is provided for set-top boxes that display multiple instances of a single multimedia program. Embodied set-top boxes request the transmission of a multimedia program and determine the play point of a remote set-top box. Embodied set-top boxes set a local play point to correspond to the remote set-top box's play point. More than two set-top boxes may be synchronized in accordance with disclosed embodiments, and some systems implement master and slave set-top boxes for purposes of synchronization.