KBO is on ESPN and many people enjoy the only major sport that is available on ESPN.
Understanding the baseball culture in two countries:
MLB: Bat Flipping is not a good manner
KBO: It is a ceremony & performance
Here are stories and comparison:
https://www.youtube.com/watch?v=Q13U_VkbGmo
https://www.youtube.com/watch?v=OgNAwS6kwzI