Yes I watched ALF back in the 80s, and no he wasn't the first.
There have been plenty of TV shows that had the same premise on American TV going back all the way to the 60s. From Mork and Mindy to My Favorite Martian that have all portrayed this same immigrant type story. Again its not a new take.
Geez, how did I forget Mork & Mindy?!?

I used to watch that one religiously! Loved it!
But thank you for answering my question. As of 2025, any wacky/loveable alien in a TV or movie is now considered an
"immigrant". And Tripods are mean and bad, so they aren't immigrants even though they were here long before we arrived on this planet and long predate our immigration laws on who can legally live in South Boston. I got it now!
Someone needs to get to Google and the various dictionaries though, they haven't got the Newspeak memo yet.
I'd challenge you that you just provided the definition that gives your answer. Alf is an immigrant, it tells an even better immigrant story than Superman. Some of those examples are not as they are visitors (ET) or invaders (tripods) and do not come to live permanently. Though ET is very much the story of an illegal Alien (in both the space and legal sense).
I'd challenge you that
ALF was the sitcom story of a wacky/loveable space alien living with an American family. But
Perfect Strangers was the sitcom story of an wacky/loveable immigrant living with an American family. See the difference?
Of course, I'm using the word "immigrant" to mean a human from another country. Not an alien from a different planet
(cue studio laugh track!).
The challenge here is that the word immigrant has been reframed to be seemingly only one that is negative. The only reason this is even getting a rise at all, is over current mostly US and Western EU policy. Which is perhaps the big North American problem. Most of us are only several generations from being immigrants apart from our UK posters, who go a ways back to being Anglo-Saxons.
The challenge is that some folks keep forgetting to use the words "legal immigrant" versus "illegal immigrant". I can make that distinction easily, and easily label them as such, just as easily as I can make the distinction between a shoplifter and a shopper.
In my famously pea-sized brain... an immigrant, legal or illegal, refers to a
human moving from their country to live in a new country. It does not refer to alien life forms from different solar systems travelling throughout the galaxy and landing on Earth.
Clark Kent came to live permanently in a foreign country, the classic Superman narrative opens with this plot point. That meets your captioned definition. That also used to be seen positively. If the media wants to froth themselves up over it, that's their pejorative.
So we're just glossing over the dying planet Krypton and being shot across the galaxy in a space cradle then? Seems rather relevant to the story of Superman.
We'll be losing out on a lot of fun backstory though if we're going to pretend Superman just arrived here at JFK on United and had to fly economy with the other immigrants. And the line at Customs was brutal!
