Provided are a system and method for publishing a disparate live media output stream manifest that includes one or more media segments corresponding to key events. The system comprises one or more processors that generate a programming schedule, based on a synchronization of one or more disparate sub-systems in the system, includes one or more key events that occurred from a starting point until a current live point in a live input stream. Further, a reference clock provides a reference time to synchronize the one or more disparate sub-systems. Based on the programming schedule, one or more processors insert the current live point and one or more media segments corresponding to the one or more key events that occurred prior to the current live point included in a live input stream manifest into a disparate live media output stream manifest, which is further published based on the insertion.