Unsolved Mysteries scared the shaq-fu outta me! I remember they had some of those "ghost stories" or whatever and it used to scare the bejesus out of me, hardcore man.
Also, America's Most Wanted always made me think there were serial killers outside of my window ready to kill me. I was also afraid of tornadoes and hurricanes a lot too, because they hit all the time.
There were a few other TV movies (?) and stuff I remember that scared me. Here goes:
Fortress: I think that's the name. There is a small town school with a young woman teacher and four guys dressed with animal masks (Ducks, Rabbits, and two others) come in and take them away with shotguns. They put the class in a pit in the ground and close it up. The kids (aging from age 5-16) and the teacher have to escape the tunnel, then when they do the four guys are chasing them around with shotguns killing them off.
Some airplane movie: These people were on an airplane with shoddy construction, and midair the whole center of it tears out -- the walls rip off and it's basically open the whole time, held together by the base of the plane. Unrealistic, but scared the hell out of me. Especially because it was based on a true story. I have since hated flying.
Possibly a Lifetime movie: A little kid's parents are divorced, and the dad steals away the kid who is like 5 or 6. He takes the kid to a hotel and puts him on the phone with the mother, then leaves the room. He is outside, and the room explodes (he set a gas leak or something) and the kid is horrendously scarred for life with horrible burns. The rest of the movie, the little kid is in full body bandages because he is so malformed.
I particularly remember this because the next day I was visiting my dad (my parents are divorced) and he drove somewhere I'd never been to before, and I asked him where we were going, he said jokingly "The airport," which is what the evil dad said in the movie when he stole the kid.
I think that covers mine. Anyone remember these?