I am trying to find the name of the movie about a grandma with a key. She arrives in a box one day and moves in with a family. The grandma looks like Charlotte Rae (Edna Garrett off Facts of Life).

Thank you.

How about The Electric Grandmother (http://www.imdb.com/title/tt0083876/)?

I am trying to find the name of the movie about a grandma with a key. She arrives in a box one day and moves in with a family. The grandma looks like Charlotte Rae (Edna Garrett off Facts of Life).

Thank you.
That movie is "The Electric Grandma". You can find copies on Ebay.