Ghost Lab is a documentry show on Discovery Channel. There is a group called Everyday Paranormal that go to every haunted place in America to investigate whether the place is really haunted or is just a rumor.
Its really cool because they have good technology to prove and investigate. In recent episodes, they actually got a photograph of a shadow person captured. Moreover, they have EVP sessions, in which spirits actually reply to their questions. Some other stuff like the varying room and humidity temperature also shows some interesting facts.
In one episode, the investigator actually got scratched on his neck by a spirit who was said to have died of drug overdose just before a huge hurricane. The marks of three fingers were actually visible. This occurred during an ranging EVP session.
So guys, its a must see show..... u could find it on youtube.