Sony has sold its veteran OTT video business Crackle to entertainment platform CSS Entertainment (Chicken Soup for the Soul Entertainment), marking the end of a 13-year journey for the Japanese conglomerate which helped define today’s thriving streaming video market. But it isn’t necessarily au revoir forever in the Sony-Crackle love story. The deal instantly propels CSS Entertainment into the big time, inheriting an established ad-supported platform with some 10 million monthly active users streaming an average of 1.3 billion minutes of content every month through 90 content partnerships. However, Sony distancing itself from its long-term AVoD division is understandable when you consider it was voted the worst video streaming service in the US last year from a list of 18…