For me? The first anime related thing I saw as a kid was Spirited Away on VHS, I was awestruck from the animation and quality of the film.
For shows it would've been the usual Pokemon and DBZ. As I grew older I suppose my first proper anime show was watching streams of Neon Genesis Evangelion due to people talking about it at school.
It was the year of our lord 1990, I was 5 years old, and the time was somewhere after midnight. I had snuck out of my room and into my grandparents basement to sneak some late night tv.
The original Vampire Hunter D was playing and I had no idea what it was, but it was amazing. The guy had a hand that ATE things!!!
I didn't realize what it was until around 8th grade when I started getting into the standards of DBZ and Sailor Moon... I expanded drastically from there once I realized I could, spent around $4000 on manga throughout highschool and found a little hole in the wall DVD rental shop on the local college campus with a wall of anime DVDs and VHS tapes.
I remember when it came out, people on forums kept talking about it nonstop. I had no idea what it was, so I just blindly torrented something called Death Note... it was the live action Japanese adaptation lol. I didn't even know it was an anime until years later. Just for years I thought everyone on the internet was obsessed with that live action movie.
dbz and pokemon as well but only when id catch it between other activities. Didn’t actually sit through an entire anime until high school where my friend borrowed me Cromartie High.
First film was probably the first Pokémon film in theaters.
Outlaw Star was my first, on early Toonami. I got into DBZ because outlaw star came on later in the night and I refused to miss any of it! It was so… different from everything else on TV.
Still one of my absolute favorites to this day, I prefer it over Cowboy Bebop 😘
I also watched Pokemon and DBZ when I was young, not even knowing about anime.
In highschool I thought "What is anime? Let's give it a shot". I opened up Hulu and somehow picked out Non Non Biyori. Looking back, it was a banger choice.
Akira. I saw it playing on a TV behind a table at a pop culture market and got my own copy (on VHS. Yes, I'm so old that bits are starting to drop off) to find out how it ended.
Edit: Now I come to think about it, I used to watch Science Ninja Team Gatchaman on TV as a preteen. Can't remember the english title.
Show - Robotech, it was on Sunday mornings on sci-fi channel for a while in the mid 90s. Film - Ninja Scroll, dad had a descrambler and saw it on PPV in the early 00s. Good times.
First show was probably Voltron. First film was probably Vampire Hunter D.
Toonami became a big part of my life, and there was a small theater downtown that did showings of Miyazaki and such. I remember seeing Metropolis there, too.
I owe a lot to those scrappy little enterprises, taking a gamble that there would be an audience for this stuff.
I remember watching Totoro as a child not knowing it was an anime. Later I watched The Guyver (1989 OVA) on VHS at my cousin's. Evangelion and Lodoss War were the first fansubs I watched knowing they were Japanese.
I watched sword art online because I read a little about the plot and it sounded interesting to me. Second was High School DxD I believe I picked because there wasn't much else dubbed (I don't watch anything dubbed really now).
I went through a big binge of practically everything after that but only really watch the odd airing one now.
My parents bought me My Neighbor Totoro when I was a kid. I absolutely loved every second of it. Then I came across Ranma 1/2. Next came Kiki's Delivery Service. It kind of snowballed after that.
Yu Yu Hakushou. I didn't even realize the name is Yu Yu Hakushou until years later. I only remember thinking the delinquent guy with a laser sword and a guy shooting energy balls from the finger tip's pretty cool.
If we're talking about just what you watched before you recognized it was anime, it's between pokemon, Naruto, and One Piece. Couldn't tell you which I watched first.
If we're talking "Oh! I recognize this is anime!" then probably either Deathnote or Fullmetal Alchemist (2003) thanks to mid-2010s Netflix (back when it was still good).
It was the late 80’s, I saw Robotech which used to play after school on a local UHF channel, and also Speed Racer. Probably the first more typical Anime was renting the Super Space Force Macross movie on VHS
Very first was probably Inuyasha, Dragonball Z, or some Gundam way back on adult swim as a kid. My first real one that I engaged with as a semi-adult was probably Death Note.
Show would have been Starblazers or Robotech (Americanized Space Battleship Yamato and Macross/Southern Cross/Mospaeda, respectively.) For movies probably Akira.
Big fan of Star Blazers. I did eventually watch that years later, but my first anime exposure was via a VHS bought from a charity shop of a series called ThunderSub.
Very similar to Star Blazers, don't know if they were related in any way.
Not sure if everyone would consider it "anime" as it's more a hybrid of US and Japanese, but "Flight of Dragons." It felt very stylistic and deep to a young me, and showed me animation could be serious.
As to specifically watching anime as a known thing, Toonami shows pulled me in. I caught DBZ flipping through the channels and I started watching that and Outlaw Star.
Met a friend that was into it and he lent me Iria: The Zeiram, Armitage 3, Ghost in the Shell, Vampire Hunter D, and eventually a few others.
Princess Mononoke. I randomly picked it up at Blockbuster and it was so different than anything else I'd ever watched. I instantly fell in love with it.
I'm surprised only a handful of people have mentioned Ghibli movies. For me it was Nausicaa of the Valley of the Wind, it's probably one of the first movies I remember watching in general. Still my favorite Ghibli movie and I must have watched it dozens of times as a kid.
The source material for it is a manga by Miyazaki himself and it's much longer and deeper (the movie only covers about 1.5 out of 7 volumes, and changes a lot of details). Highly recommended.
Kiki's Delivery Service. I got it on VHS, probably for Christmas the year the Disney dub came out. I didn't have cable for a decent chunk of my childhood, so I saw that even before Pokemon.
TV: Battle of the Planets, way back in the late 70’s
Film I’m really unsure. Would’ve been late 80’s or early 90’s. Could’ve been any of: Warriors of the Wind (localized title of Nausicaä), Castle of Cagliostro, Akira, Project A-Ko, or Vampire Hunter D
Back in the 70’s and 80’s it was common to outsource the production of animation to Japan. So many European cartoons were basically anime. It had the typical Japanese animation style of that time. For example the same company that produced "Alfred J Kwak" made the 1990 version of the Moomin TV-series.
I think it was Bleach on adult swim at night as a kid after all the other stuff like robot chicken and aqua teen hunger force ended. Could also be DBZ though
I first saw Saint Seiya in Mexico in the early 90s. Being a young kid I didn't know it was anime at the time but remembered it being special compared to cartoons of the day.
Wagamama Fairy Mirmo De Pon!, an obscure anime that is basically The Fairly Oddparents if it was a shoujo. When I was in elementary school, it was on regional TV right after classes ended, and I loved it. It was the first ever media I could get my hands on that had an intriguing plot that I wanted to follow. I missed the series finale, tho :(
Some time ago I went back and rewatched it, complete with the finale and all. It was nostalgic but also kinda hard to rewatch because it's so clearly made exclusively for children. It was so obscure that the only full download I could come across online even had the logo of the regional TV channel where I originally watched it as a child.