What's the most horrifying thing you've watched on the TV? 
Discussion
I don't watch TV... But I'd say the civilian victims of Gaza.
Daniel Pearl being beheaded by Daesh (isis)
That was live for me !
Definitely watching the towers coming down and seeing people jump… I was in my intro to fire science class that morning with fire fighters and future fire fighters, and the college IT department had all the TVs programmed to turn on every couple minutes (the fire fighter instructors kept shutting it off) with the latest news replay of each tower falling