Your dad pretends to be in the living room to wait for the takeout delivery, but you catch him sneeking peeks at Sailor Moon.
Your dad can compare the artistic merits of Naoko Takeuchi to CLAMP.
For your 21st birthday, your dad sent you to an anime convention.
Your mom bought you the costumes you wore.
She also bought you a Clow Book with cards, and a subbed VHS of Card Captor Sakura.
You overhear your mom defensively telling a friend, "Sailor Moon is not a children's show, it's a love story!"
Every time the outer senshi's theme plays on your computer, your dad sticks his head in to listen.
Your mom buys you a musical plush Luna, but almost doesn't give it to you because it's too cute.
Your mom thinks paying $120 for a stuffed toy isn't all that strange, since it's from Japan, and it's rare.
You show your dad all of your anime and manga fanarts first for his artistic critique.
Your dad finds your anime web-site's URL and leaves comments every other week about how your doing, and the content. - Dragoon
Your father has a favorite Sailor Senshi.
He has a picture of her framed on his wall.
He comes to this list to point out things you've missed.
When they were showing the Sailor Moon movies on Toonami my mom taped them and then claimed that she was taping them for me! - Pysche
Your dad calls the Infinity volume of Sailor Moon artbooks an "investment".
Your dad criticizes DBZ but sits and watches it with you *every* day. - Picard
Your mom mentions the original japanese is more dramatic than the dub (but how would she know?) - Dominique
Your mom and dad can sing all of the dub theme song, and parts of the original theme song. - Dominique
They make comments on the Sailor Moon you're watching. - Dominique
Your mom has a deep understanding of why Mamoru left Usagi (but thinks he should have told her the truth). - Dominique
She can quote various characters. - Dominique
Not one of your parents, step-parents, or in-laws, made a peep about you getting married in Sailor Mars's wedding gown.

Got more examples? (Only stuff that's really happened, please.) Then e-mail me! I'll credit you.