Abstract: Interactive digital media platform, methods and apparatus for detecting and dynamically synchronizing to media content (e.g., television (TV) programs or movies) that a viewer is watching while providing related content on a second screen for enhancing the viewer experience. In one embodiment, the primary content is determined by detecting an audio signal of the primary content via the second screen device; the audio signal may then be processed to generate a fingerprint for comparison with a data store of primary content. The primary content can be classified by various categories (e.g., unique program, advertising, repeat airing, theme song . . . ) and the classification used to aid in the identification and/or in selection of the content to be presented on the interactive second screen device.