The merger of South Korean streaming services Tving and Seezn is a strategy that could have – should have – saved the fates of many forgotten OTT video businesses the world over, had management and investors been able to put stubbornness aside. Pay TV operators in particular should be more open to the idea of spinning off their streaming video ventures and then merging with a rival to better compete with thoroughbred streaming heavyweights. Instead, countless $billions have been lost as content catalogs wither on the vine. Consolidating the two South Korean operations is an attempt to form a business capable of challenging Netflix, which it may surprise some to learn is the most popular OTT video platform in South…