US Patent 10397289 HTTP live streaming (HLS) video client synchronization

A streaming media server is provided that receives a request over a network from a customer premises gateway to receive a streaming media content item that is to be presented on two or more client devices in a synchronized manner. Responsive to the request, the streaming media server sends a manifest associated with the requested streaming media content item to the customer premises gateway only when it has been incrementally updated to remove an oldest media segment URL from the manifest and add a most recent media segment URL to the manifest.