Modern Taekwondo. At the very least, it is tolerable to watch, given that most of the techniques that are seen in tournaments are foot-fencing, the practice if using cut kicks to keep your opponents at bay, so more of a defensive stance. This of course is used across many tournament matches, and it is not entertaining to watch to say the least. The result is what looks like play fighting between two people who are supposed to be highly skilled in one of the deadliest martial arts in the world. So maybe it is in the best interest of the World Taekwondo Federation to go back to old school taekwondo, which involved actual techniques, and looked like real fighting, so that the audience will come back to watch entertaining fights once again, and the fighters in the actual ring can have a real fight, and use real skills that will prove useful in proven self-defense. But always remember, Christ is King.