1. A system for creating blended content associated with an event, the system comprising: a live-content recording apparatus including two or more cameras for recording video data throughout the entire duration of the event, where the video recordings are either of the event activities or event spectators, where each of the two or more cameras outputs original distinct streams of temporally sequential video frames as a multiple data source of event live-content, and where the two or more original streams form multi-camera video data; an event activity tracking system for measuring in real-time the event activity of one or more event objects throughout the entire duration of the event, where event objects are either objects or one or more people associated with the event, where people are either participants in the event or spectators, and for outputting the tracking data as a multiple data source of event live-content; and a content assembly system including a blending algorithm for creating new blended content in real time from the multiple data sources of event live-content, where the new blended content at least includes one or more new streams of video frames, where each new stream is unique in its composition of video frames with respect to any and all of the original video streams, where each new stream contains at least two video frames taken from different original streams, and where the content assembly system receives the multi-camera video data and tracking data and selects each of the at least two video frames taken from different original streams at least in part using the tracking data, thereby creating a broadcast with undetectable delay to the human viewer of the on-going event.