When I was a kid (early 80s) I barely remember watching a movie on TV about an alien who masqueraded as a benevolent humanoid and communicated with a woman through television screen static. The movie ended with the alien tricking the woman, and if my memory is right, somehow kidnapping her through the TV. (I know it sounds like Poltergeist, but is was a few years before that).
Sorry if the specifics aren't clear or accurate... but it has been driving me crazy for years that I don't know what the movie was called! It did really freak me out at the time.
Any suggestions would be so awesome. Thanks in advance ;-)