Don't know if it's what Netflix actually uses, but you can use perceptual hashing[1] to identify spans that are common to multiple episodes of the same series.

Don't know if it's what Netflix actually uses, but you can use perceptual hashing[1] to identify spans that are common to multiple episodes of the same series. [1] https://en.wikipedia.org/wiki/Perceptual_hashing https://en.wikipedia.org/wiki/Perceptual_hashing