re: Can a tv just turn on by itself?

I stayed in a vacation home one time that was allegedly haunted and had this happen. Fortunately it was during the day in someone else's room. There is probably a logical explanation. I used to live close enough to a car dealership that their walkie talkies would occasionally come on over my computer speakers. There are all manner of waves and forces flying through the air that we can't see unless it hits something just right to let us know it's there.