1. A method comprising: generating a plurality of fingerprint stores at a channel identification server, wherein different fingerprint stores store digital fingerprints representing substantially current broadcast content associated with different broadcast sources; comparing the plurality of fingerprint stores with each other to determine a Hamming distance associated with differences between at least two of the plurality of fingerprint stores; and determining, based on the Hamming distance, that the broadcast content associated with one of the different broadcast sources matches the broadcast content associated with another of the different broadcast sources.