Ok, I'm not going to be much help here, but I remember a kids TV show that used to be on in the afternoons (quite possibly ABC) which involved a young boy living with his grandmother. There was this weird weathervane object on to of a barn which used to light up at night and turn around point at the boy. It freaked the crap out of me as a kid. I think it may have involved some involvement with aliens, but not sure. I don't think I got all the way through the series to find out.
Very vague description i know, sorry about that, but I'd really like to work at what the show was as it still haunts me!