Only in the sickest of worlds could stabbing be entertainment on television. For when we mix violence with adrenaline and excitement we short circuit the brain and make these actions more frequent at the population level. Stories are part of social evolution. We evolved as storytellers before there was a modern world. Our neurology makes the story, the story influences the development of neurology in society, then society influences the storyteller - for this is how biology works, in feedback systems that are supposed to maintain health.
When the primitive brain takes over, when the prefrontal cortex is switched off, primitive things happen with permanent consequences, with lasting pain and lasting damage.
It is a sick world where these things happen, where we even have words such as "stabbed." In a good world, it would be an almost impossible concept, because all would have a well developed sense of empathy, a well developed prefrontal cortex.
Stabbed. Bled out. Pain and sickness, fear and cold. Holding onto Pandora's box as the light ebbs, holding onto the hope of love, of comfort once more.