My children asked me about the oldest movie I can remember (as a kid). It is a movie from before 1977 (probably mid 60's - early 70's) about a house where (children? owners?) were not taking care of the home appliances (I do not remember how exactly, but I think by not cleaning them, etc.)
This home equipment, one day, decided to revolt against the owners and attack them. I am sure the TV was part of the plot, and probably a vacuum cleaner.
I know that sounds like a comedy but it was not one, and what is left of the 5-6 years old boy in me is still terrified. Sorry for not having more details but my brain probably erased them.
It may have been a short movie (The Twilight Zone - like) and it was broadcast in Europe (in France I think, may have been Poland or Germany). I tried to Google for "home appliance attack" and this indeed brings a movie, but from the 00's.