Growing Pains - I had completely forgotten that title.
The idea that grandfather did not know he was dead stayed with me as I've heard that notion before. I think that WAS the situation, was it not? He did not realize he died?
And Kirk Cameron, I have not thought of him in ages.
This is true. After seeing the Grandfathers ghost in the kitchen for the second or third time, he forces himself to go to the kitchen for another encounter to try to mae contact with the ghost. Mike manages to stop the grandfather in mid jog while still in the kitchen, pointing out to him that he died. And this is news to the grandfather's ghost. He doesnt even realize that he was dead.
This epsiode has stayed with me too. (I have read somewhere that some ghosts dont even realize that they are dead) And if you liked that plotline, then you should see the Nicole Kidman movie: "The Others"