Systems and methods for delivering content according to a customized program lineup are provided. A content source transmits a plurality of media assets in a first schedule according to scheduled transmission times. A processing device may receive a user input to receive the media assets in a second schedule different from the first schedule. When a request to access the content source is received, the processing device may automatically determine, based on the second schedule, whether the user has requested a different media asset than the originally-scheduled asset at the time of the request. If the user has requested a different media asset, the processing device may automatically receive and provide the different media asset instead of the originally-scheduled asset.