1. A method comprising: receiving content from at least one source; processing the content to identify an object in the content; assigning an identifier to the object based on the processing; permitting viewer selection of the object identifier; and providing additional information for presentation to a viewer of the content responsive to viewer selection of the object identifier; wherein the content comprises at least a portion of a panoramic video comprising a combination of multiple live videos from respective ones of a plurality of video sources; the method further comprising digitally cropping and scaling the panoramic video before providing a resulting version of the content for presentation to the viewer; wherein the receiving, processing, assigning, permitting and providing are implemented in at least one processing device comprising a processor coupled to a memory; wherein said at least one processing device is further configured to generate a plurality of different digitally cropped and scaled versions of the content from the panoramic video; and wherein said at least one processing device is further configured to provide a first one of the plurality of different digitally cropped and scaled versions of the content for presentation to the viewer, and responsive to input from the viewer, to provide a second one of the plurality of different digitally cropped and scaled versions of the content for presentation to the viewer, wherein the second one of the plurality of different digitally cropped and scaled versions of the content is provided for presentation from a rewind point specified by the viewer.