13 titles.

1. Doctor Who (2005 TV Series)
Episode: Utopia (2007)
Oh, it's far beyond the condensed wilderness, out towards the wildlands and the dark matter reefs, calling us in. The last of the humans scattered across the night.
Does it matter?
Professor, it's a wild stab in the dark, but I just may have found you a way out.
2. The Big Bang Theory (2007 TV Series)
Episode: The Bath Item Gift Hypothesis (2008)
So, um, Dave, don't you think you and I should get back to the lab? You know, that dark matter isn't going to detect itself.
Your argument is lacking in all scientific merit. Now, it is well established Superman cleans his by flying into Earth's yellow sun, which incinerates any contaminant matter and leaves the invulnerable kryptonian fabric unharmed and daisy-fresh.
3. House M.D. (2004 TV Series)
Episode: Twenty Vicodin (2011)
Before I went to Med School. Thought about getting a PHD in Physics. You ever hear of dark matter? The galaxies rotate. Motion of the universe. It means there's six times more stuff than we can detect. But it's theorized. No one's ever proved it exists.
4. Battlestar Galactica (2004 TV Series)
I don't want to be human! I want to see gamma rays! I want to hear X-rays! And I want to - I want to smell dark matter! Do you see the absurdity of what I am? I can't even express these things properly because I have to - I have to conceptualize complex ideas in this stupid limiting spoken language! But I know I want to reach out with something other than these prehensile paws! And feel the wind of a supernova flowing over me! I'm a machine! And I can know much more! I can experience so much more. But I'm trapped in this absurd body! And why? Because my five creators thought that God wanted it that way!
I am a flag officer on detached service during a time of war. Regulations give me broad authority in this matter.
5. Futurama (1999 TV Series)
Episode: Bendless Love (2001)
Dark matter indicator?
Well maybe I love you so much that I love you no matter who you're pretending to be.
6. Futurama (1999 TV Series)
Episode: A Clone of My Own (2000)
These are the dark matter engines I invented. They allow my starship to travel between galaxies in mere hours.
Thank you all for saving me. Especially you, my little clone. No matter what you decide to do with your life, I'm proud of you.
7. Star Trek: Deep Space Nine (1993 TV Series)
Episode: The Darkness and the Light (1997)
Panic starts to creep into its soul, does it understand? Or is it so blinded by the light that it can think only of returning to the velvet cloak of darkness? No matter. Perhaps it is better that it doesn't realize how close death has come. But make no mistake; there is no escape. It has reached the end, and soon - it will die.
A creature born within the comforting anonymity of darkness awakens in the harsh truth of daylight. It squirms in the glare, afraid of the light that pins it to the chair like a needle through its heart.
Don't worry. I promise that I'll take care of the child. And that I'll teach him the difference between darkness and light.
He wanted to protect the innocent... and separate the darkness from the light. But he didn't realize... the light only shines in the dark. And sometimes innocence is just an excuse for the guilty.
The creature slept, dreaming its dark dreams, and happy to be out of the light. The innocent life it held would awaken in brilliance, and never... know darkness... again.
8. Babylon 5 (1994 TV Series)
Episode: The Paragon of Animals (1998)
It speaks in the language of trust. It speaks in the language of strength and the language of compassion. It is the language of the heart and the language of the soul. But always it is the same voice. It is the voice of our ancestors speaking through us. And the voice of our inheritors waiting to be born. It is the small, still voice that says: "We are one." No matter the blood, no matter the skin, no matter the world, no matter the star: we are one. No matter the pain, no matter the darkness, no matter the loss, no matter the fear: we are one. Here gathered together in common cause we agree to recognize this singular truth and this singular rule: that we must be kind to one another.
9. Hyperdrive (2006 TV Series)
Episode: Admiral's Daughter (2007)
They're Engulfers. They devour atoms and turn them into dark matter.
10. Futurama: Bender's Game (2008 Video)
Mom, you control the world's only dark-matter mine. Why are fuel prices so high?
Oh, it's terrible, isn't it? Dark matter is just so rare nowadays, but we'll keep pinching loaf after loaf from the bowels of the Earth, even if I lose money on every log.
I'm sure I don't need to explain that all dark matter in the universe is linked in the form of a single non-local metaparticle.
And now to grace us with its rendition of the national anthem, please welcome what is left of the Dixie Chicks after their tragic matter transporter accident.
11. El Greco (2007)
Because you aren't wrong to be afraid, but every flame you light drives you deeper into the darkness and no matter how many people you burn, you will never escape it.
Can the darkness condemn the light?
12. Futurama (2003 Video Game)
...that's why you have to find us some dark matter, Leela.
13. Spiral Zone (1987 TV Series)
There is always a way out of the darkness, no matter how deep it is!
13 titles.