1. A method comprising: receiving, by a computing device, a plurality of media streams; decoding, by the computing device, the plurality of media streams; receiving, by the computing device, a first configuration file comprising a first configuration setting and a second configuration setting, wherein the first configuration setting comprises a first instruction to map an auxiliary input to a first channel assignment of a plurality of channel assignments and the second configuration setting comprises a second instruction to map a particular media stream, among the plurality of media streams, to a second channel assignment of the plurality of channel assignments; receiving, by the computing device and separately from the first configuration file, a plurality of channel lineups; and providing, by the computing device, a first output channel lineup, among the plurality of channel lineups, to at least one device, wherein the first output channel lineup maps the auxiliary input to the first channel assignment and maps the particular media stream to the second channel assignment.