Methods and systems for determining meta-information for a channel being viewed are described. At an inline TV processor with a processor and memory, a first TV signal is received from a first source. One or more fingerprints are generated from the first TV signal. A plurality of second TV signals are received from a second source, and one or more respective second fingerprints are generated for each of the second TV signals. It is then determined whether one of the first fingerprints matches one of the second fingerprints. In response to determining that one of the first fingerprints matches a respective one of the second fingerprints, meta-information of the second TV signal (that is associated with the matched respective second fingerprint) is associated with the first TV signal. In response to determining that one of the first fingerprints does not match any of the second fingerprints, the steps are repeated.