Publishing disparate live media output streams in mixed mode

A system generates disparate live output stream manifests. A disparate live media output stream manifest is generated based on a programming schedule, an additional parameter, and one of a first live input stream manifest or a first pre-encoded media asset manifest. Based on a first transition or a second transition, a different pre-encoded media asset manifest or a different live input stream manifest is inserted to the disparate live media output stream manifest. Based on the insertion, a first live input stream or a first pre-encoded media asset is switched to a different pre-encoded media asset or a different live input stream. The first live input stream manifest or the first pre-encoded media asset manifest is modified. The modification causes retransmission of media segments of the first live input stream or segments of the first pre-encoded media asset on a disparate live media output stream.