4/20/26:
The three "nearly identical to Earth" planets in TOS that I can recall are:
- The Miri planet (even the continents were identical to Earth)
- The Yangs and Comms planet. (The one where they had an American flag and Kirk read the Constitution).
- The Roman Empire planet.
There were a few more with similarities, or whose culture was changed by outside influence. But I'm only talking about the ones that were nearly identical just because. Am I missing any?

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Comments from the Tagboard:

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04/21/26 02:56 PM
Freezer: "Fascinating... The database says someing called 'Sazae-San' still ranks ahead of 'The Simpson' for longest continuous narrative in Earth history..."
04/21/26 11:36 AM
BrickVoid: The Simpsons has been going for quite a few seasons. I watched an episode or two of the early seasons, but never really got into ot. I would tehrefore appreciate it if you explain any upcoming episode specific references. It looks okay so far, though! :D

Transcript
Panel 1:
Squeaky Voiced Teenager (aside): Sir, this is a Krusty Burger. We don't have burritos.
Homer Simpson (aside): There was an ad on the TV for Krusty brand burritos!
Bart Simpson (aside): That was for the grocery store, Dad.
Commander Dale Zurkett: This is just bizarre. How is this possible?
Zack Del Rio: Didn't Captain Kirk find like three planets that were almost identical copies of Earth?
Dale: Fair point. But still.
Lieutenant Commander Natashia Staratt: I'm confused. You find these aliens particularly unusual?

Panel 2:
Dale: Right... you probably haven't sat on your couch for hours watching centuries-old television shows.
Zack: These people appear to be exact copies of characters from a show called "The Simpsons."
Natashia: Simpsons... Let's see... Oh yes. It's in the database. Began in the 1990s.. never officially cancelled...
    Fascinating.

Panel 3:
Natashia: Hm... they ARE alive. I don't detect anything outside standard norms for alien life.
Dale (aside): The weirdest part is seeing them in three dimensions.
Zack (aside): I know, right?
Bart: Hey lady, hands off the merchandise!
Natashia: Apologies. It is simply a routine scanning tool.
Homer: Bart! Leave that woman alone.
Bart: She's the one pointing a weird box at me!

Panel 4:
Teen: Here's a hotdog, sir. It looks a little like a burrito. I guess.
Homer: Mmm... hotdog...
Unknown Transmission: Ha-ha-ha-ha-ha!
Bart: And what's with the ears? Are YOU an alien?
Natashia: I am not at liberty to divulge that information.
Bart: Cool!

Panel 5:
Commodore Jeffrey Bannister: Ooh, do I smell burgers? We should get some burgers!
Zack: What? Really?
    Sir, if this really is a Krusty Burger... I'm not sure anything on their menu actually qualifies as "food."
Jeff: I'm willing to take that chance!
Unknown Transmission: Ha-ha-ha-ha-ha!