It can be horror or non-horror. A couple of years or so before the world was about to be exposed to Sesame Street for the first time in 1969, I watched these strange and sometimes harrowing educational segments on PBS which in our area was Channel 2 in Boston. One was a short film that was a dramatization of a gang fight but it was far far more brutal than anything we saw in West Side Story or even anything we saw on the news about gangs, and was more akin to the news footage coming out of Vietnam at that time. The kids in this film were using knives to kill each other and we had these terrible images of boys on top of each other with the one on the bottom struggling desperately to prevent the one on top's knife from plunging into him. But that's not what made it so horrible, though it was graphic and bloody. The soundtrack of this short film consisted entirely of real boys watching this footage and cheering and hooting and joyfully exclaiming each time the knives found their home. Was it some kind of experiment being conducted about modern youth and making a comment about desensitization and the appeal of violence? The final few moments of the film showed all these dead kids lying on the ground, some with eyes half open, and bloodied from stab wounds. The last shot was of the victors fleeing the scene. The cheers from the kids watching it continued. It was the weirdest, most disturbing thing I can remember seeing as a kid on TV (circa 1966-67). To this day I wonder WTF it even was. All I know is that it was a true TV terror to this monster kid used to monsters made of rubber & latex and their victims that didn't bleed.