http://www.imdb.com/title/tt0104870/
apparently it was a movie
I absolutely loved this movie and over the years I have watched it over and over again. I've made my friends and my family watch it and I've recommended it to everyone I know. This movie really gives me the willies because somehow the thought of a child being like Mikey is just plain out scary. I can't really go into details without spoiling the movie so I can just say: SEE IT!!
PS: That the main character also starred in "Family Ties" didn't spoil anything for me any of the times I saw it. He isn't as cute in this movie as he is in the series...
Mikey is a horror film released in 1992 directed by Dennis Dimster and starring Brian Bonsall. The film centers around the character of Mikey, a young boy who is adopted by a family after his original parents die. However Mikey may not be the darling child they expected. Mikey turns out to be a murderous psychopath who hides his true intentions and by the end of the film he murders all but two of the principle cast then fakes his death so that no one would find him, only to be adopted by another family.