| CPC G05B 19/42 (2013.01) [G06F 3/0481 (2013.01); H04N 5/50 (2013.01)] | 20 Claims |

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1. A method comprising:
while a media playback device is playing back first content received on a first channel broadcast by a first radio station, determining, by the media playback device using a classifier, that second content received on a second channel comprises audio content, wherein the second content is broadcast by a second radio station;
generating, by the media playback device, using the audio content, a query fingerprint based on the determining that the second content comprises the audio content;
sending, by the media playback device, a preview request comprising the query fingerprint to a server that maintains a reference database containing a plurality of reference fingerprints;
in response to sending the preview request, receiving, by the media playback device from the server, identifying information corresponding to a reference fingerprint of the plurality of reference fingerprints that matches the query fingerprint; and
while the media playback device is playing back the first content received on the first channel, providing, by the media playback device for display, at least a portion of the identifying information.
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