Now we're starting to see television series' appear with lesbian characters and even lesbian casts. Here are the shows I have seen that have lesbian characters (because lesbians are still a minority on TV compared to gay men):
Ellen: (US 90's) not all of it, but I did get to see most of it, including the famous episode where Ellen comes out. HUGE impact on my life.
The L Word: US 200?. Don't make me describe this. You're silly if you don't know what it is. Wish they had a better array of lesbian character types. High drama that sucks you in.
Wonderfalls: (US 2004). Short lived series that went 13 eps, only four or five of which aired in the US. The main character's sister (who is one of the main supporting characters and thus in nearly every single episode) is a lesbian. And her relationship with another woman was given as much screen time as most straight supporting couples are given, if not more. The best part is that she's so far from the stereotype it's insane. Femme, chain-smoking, REPUBLICAN, SUV, money-hungry attorney. Hilarious - I think she would of become a famous lesbian TV character icon had the show not been erroneously cancelled by FOX.
Xena: Warrior Princess: (NZ/US) Everyone knows Xena, come on! This show inspired me to believe that there WASNT something wrong with me because I was attracted to women. It got me through high school and beyond without becoming suicidal and for that this show forever has my grattitude. Not a lot of outright lesbian content, but the subtext might as well of been maintext.