I think this was a TV movie.
At the start of the movie you see coloured liquids going into the ‘bloodstream’ of a metal android.
At the end of the movie we discover that many famous people like Abraham Lincoln, Socrates, etc were all androids.
I think we see ‘dead’ androids on a long row of slabs going off into the distance to show that hundreds of androids over the millennia guided the human race.
I’ve been wanting to track this title down for the last 20 years! I hope you can help! 
I have not seen this, this is just a guess, maybe?:
Season 2, Episode 2 titled “Resurrection” of the TV series “The Outer Limits”
questor tapes?
in the second link they show the endless line of android bodies in the cave
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