Systems and methods are provided for identifying instances of media programming available within a media distribution system. An exemplary method involves searching a listing of media programming available from a first content source using search criteria indicative of a desired media program to identify an instance of the desired media program available from the first content source, obtaining a target program identifier associated with the desired media program from that instance, identifying another instance of the desired media program in a second listing of media programming available from another content source using the target program identifier, and providing a combined search result that indicates availability of the desired media program from the content sources.