When I was a teenager (early 2010s era) I was so desesperate to find some lesbian representation and visibility, and then I watched a lot of lesbian movies. Here are some movies I watched back then :

TIPPING THE VELVET - Sarah Waters (2002)
The movie that every lesbian was watching at the beginning of our century. Sarah Waters also made FINGERSMITH , which is the movie that inspired "the Handmaiden".

BOUND - The Wachowski sisters (1996)
A wonderful mafia lesbian movie.

SAVING FACE - Alice Wu (2004)
Lesbian and POC representation ! yay !

BUT I'M A CHEERLEADER - Jamie Babbit (1999)
A comedy about conversion therapy. Yes.

THE WATERMELON WOMAN - Cheryl Dunye (1996)
This one was on my watching list, but I didn't found a cracked version back then. It's lesbian & Black representation, that must be awesome to watch.

ROOM IN ROME - Julio Medem (2013)
A movie about a casual lesbian sex story : how a powerful relationship can emerge from one night stands... That was interesting but I think I was too young to fully appreciate this kind of subject.

GIGOLA - Laure Charpentier (2011)
A movie about lesbian sex work in the early 20th century Paris.

CIRCUMSTANCE - Maryam Keshavarz (2011)
Keshavarz also made the recent queer movie "The Persian version". Both are great.

I hope that could help you :)
(and also, hello everybody, this is my first post !)

I'm not sure if it represents you, but this show used to have me laughing tears:

https://en.m.wikipedia.org/wiki/Absolutely_Fabulous

Lost Girl was pretty decent. The main character is bi.

A couple of years short of your timeline, but Riverdale had a couple on the show.

Buffy the Vampire Slayer... eventually. Can't really think of any other good shows that old with lasting positive representation.

The Wire. Don't want to spoil it by saying which one, but a key character turns out to be a lesbian.

I hate the notion that The Wire counts as an old show! 😁

Xena the Warrior Princess (1995-2001)

Babylon 5 has two women start a relationship... sort of.

They set up a frienship that was supposed to turn into a romantic relationship, but one of them left the show, cutting that subplot short. They still try to work it in, as the last couple episodes before the character exit heavily imply they are romantically/sexually involved, but nothing is explicitly confirmed until the next season when the remaining character briefly opens up about having loved the now absent character.

It's not much, but it's still pretty big for the early to mid 90s.

If you are interested in learning about queer representation on TV there's a great YouTube channel from Matt Baume who talks about the history of it. He also wrote a book about it: Hi Honey I'm Homo

If you haven't looking into it there was a surprisingly a lot of good representation in the 70s. This all dropped off in the 80s because of Reagan.

Xena

The Legend of Korra.

I wouldn't call it 'LGBT focused,' but it paved the way for LGBTQ in all of western animation. It's not too anime in spite of its style, and the lead character is bi. And awesome, and hilarious:

The L Word ran for 6 seasons, about 20 years ago. Wiki link

• The L Word is older than 10 years 😭
• Lip Service is a kind of L Word from Scotland
• Sugar Rush is a British teen drama centered around a Lesbian character
• True Blood has a lesbian character and 2 bi characters
• Queer as folk is considered a landmark in queer Television

Also, shout out to https://lezwatchtv.com/

Roseanne had a lesbian couple in it. Roseanne's boss at the diner was also gay, but I don't remember if they ever introduced his partner.

Unfortunately most lesbian/bisexual women in older TV shows weren't about representation, but more geared towards either the male fantasy, or to make jokes off of/out of them.

Sailor Moon, but not in the American or German versions. I think in America they were cousins and all the romance cut out and in Germany one was turned into a guy.

Station 19 started in 2018, almost old enough, I thought it was really good, of you like fire fighter procedural dramas. Had strong gay, lesbian and bisexual characters. Kind of a spin off of greys anatomy.

911 Lone Star, came out in 2020, three gay men and a trans man, I don’t think there were any lesbians, also a fire fighter drama.

Greys Anatomy, 20 years old and still going, one lesbian and one bisexual main character (I’m only at season 10, can’t speak to it past that).

Madam Secretary, came out in 2014, had one lesbian character- not really a main character though.

not one I've seen myself yet but Wynonna Earp has been recommended to me. It hasn't quite hit the 10 year mark though it started airing in 2016

Orange is the New Black.

Once Upon A Time has a pretty well-done lesbian relationship in the seventh season. Season five had a lesbian romance episode, but the characters involved were then never mentioned again. Season seven did a better job, with the lesbian characters being recurring characters throughout the season

6 feet under has one of the main characters who is living a gay marital life.

Skins UK attempted to deal with every topic they could get their hands on, including lesbianism (and homophobia iirc), with the drama turned up to 11.

I don't know how it holds up today, but back then as a dramatic teen myself I loved it.

All in the family in 1977 https://en.wikipedia.org/wiki/Cousin_Liz

Cousin Liz from All in the Family, aired 1977.