Synchronizing content display across multiple devices

A method, comprising:

• receive, at a processor via a communication interface, a content feed comprising a representation of an event;
• generate a content stream comprising or derived from the content feed and a synchronization signal that associates each of a plurality of portions of the content stream with a corresponding real-world time at the event depicted in the content stream, wherein the synchronization signal includes an audio signal at a frequency not associated with human hearing;
• and
• provide the content stream and the synchronization signal to a location via the communication interface;
• wherein:
• a synchronization master at the location is configured to broadcast the synchronization signal locally;
• and
• each of a plurality of devices at the location is configured to:
• communicate with the processor via a first channel to receive the content stream;
• communicate with the synchronization master via a second channel different from the first channel to receive the synchronization signal;
• and
• use the synchronization signal to render the content stream such that the content stream presented on a respective device of the plurality of devices is synchronized with one or more other of the plurality of devices.

A computer program product embodied in a non-transitory computer readable medium, comprising computer instructions for:

• receiving, at a processor via a communication interface, a content feed comprising a representation of an event;
• generating a content stream comprising or derived from the content feed and a synchronization signal that associates each of a plurality of portions of the content stream with a corresponding real-world time at the event depicted in the content stream, wherein the synchronization signal includes an audio signal at a frequency not associated with human hearing;
• and
• providing the content stream and the synchronization signal to a location via the communication interface;
• wherein:
• a synchronization master at the location is configured to broadcast the synchronization signal locally;
• and
• each of a plurality of devices at the location is configured to:
• communicate with the processor via a first channel to receive the content stream;
• communicate with the synchronization master via a second channel different from the first channel to receive the synchronization signal;
• and
• use the synchronization signal to render the content stream such that the content stream presented on a respective device of the plurality of devices is synchronized with one or more other of the plurality of devices.