Bump.
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I should have checked YouTube, and it does have this rarely shown hour-long episode:
(W)hat are we without our dreams?
Making sure our fantasies
Do not overpower our realities. ~ RC

I will look into these this weekend. I just registered on IMDB and I can't believe all the helpful answers to my first post/question. Thanks all!

IK, R?
I see this all the time and have to LOL!
Do the responders really know that the OP with the faded name is gone for good and will never see their post?
"Please vote to preserve the unique character of Warren…" - Robert Duvall

Neither of you should get all worked up since I doubt the op will see these posts lol

No, you are the one who is mistaken. The scene described by the OP takes place at the end of Act 2 of the hour-long TWILIGHT ZONE episode "In His Image". He (George Grizzard) is hit by a car and then examines his arm in an alley and peels the slashed skin away to reveal electronics underneath.
On "Demon with a Glass Hand", Robert Culp's character has a mechanical hand from the very beginning of the episode and spends the hour in a deserted building recovering the missing electronic fingers to find out from the electronic brain inside the hand what is going on. In the last scene, the fully restored hand informs him that he (Culp's character) is a machine. He sees some glowing from the rest of his body and hints of electronics underneath, similar to the hand throughout the show. At no time does he ever peel back his skin and see electronics as George Grizzard's character did in TZ. And he is not in an alley in that final scene.
So the correct show the OP was looking for was the TWILIGHT ZONE episode entitled "In His Image."

WRONG!! IT IS "
DEMON with a GLASS Hand
"!
“Call a SPADE, a SPADE; and a TRANNY, a TRANNY, or an IT!!!”.
"THAT'S SOME BAD
SHIT
,
HARRY
!".

MystMoonstruck
is correct It is
In His Image
I seen that episode a couple of times.
I thought
P.E.T.A.
meant
People Eating Tasty Animals

But he does take off the glove early and you see the electronic hand. When I saw that I assumed he was a robot.

However, we do not know beforehand that he is a robot/android. That isn't revealed until the end of the episode. That's not how we're shown that he isn't a human being. It must be something else unless you're misremembering.
As for "The Sixth Finger": That is about a scientist exploring with speeding up evolution.
There is an hour-long episode of "The Twilight Zone" titled "In His Image". But, I don't recall that being the "reveal".
https://en.wikipedia.org/wiki/In_His_Image
(W)hat are we without our dreams?
Making sure our fantasies
Do not overpower our realities. ~ RC

yea this one Demon with a Glass Hand

I agree with you since you're right!
I'll let you know when I come-up with a new signature,
.

Sounds a lot like
Demon with a Glass Hand (1964)

I will look into these this weekend. I just registered on IMDB and I can't believe all the helpful answers to my first post/question. Thanks all!

I agree with
Paso
_
Leati
since he (or she?) is right.
I'll let you know when I come-up with a new signature,
.

It sounds like an Outer Limits episode.
The Sixth Finger
episode pops into my head
"What are we supposed to use? Harsh language?"