A system generates disparate live output stream manifests. For a disparate live media output stream manifest generated based on a first live input stream, programming schedules and/or events in a first live input stream manifest are identified. Based on a transition due to the identification, a second live input stream manifest and/or a pre-encoded media asset manifest is inserted in the disparate live output stream manifest. For the disparate live media output stream manifest s generated based on a first pre-encoded media asset, the programming schedules and/or the events in a first pre-encoded media asset manifest, and/or events in the second live input stream manifest defined in the programming schedules are identified. Based on another transition due to the identified events, a second pre-encoded media asset manifest and/or a live input stream manifest is inserted in the disparate live output stream manifest. The disparate live output stream manifest is published.