A media device meeting an idleness criteria may be detected. In response to detecting an idleness criteria, media content may be sent to the media device. The media device may be configured to receive a particular content stream or streams accessible via the internet comprising the media content. The media device may derive a fingerprint from the media content and send the fingerprint to a fingerprint database, along with additional data pertaining to the media (such as title, synopsis, closed caption text, etc.). Detecting that a media device meets an idleness criteria may involve receiving a signal from the media device, the media device completing a duration of time without receiving a user command at the media device, or determining that the media content has resource availability for deriving a fingerprint.