Doctor Who and Big Bang Theory Crossovers
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The Sofa Theorem by chocolatecheesecakes reviews
When Leonard wakes up one morning to find the TARDIS behind the sofa, he knows that life as he knows it will never be the same. Sheldon can't contend with the fact that a television show is real, and that there is someone in the world smarter than him. Sparks will fly... ON HIATUS
Rated: T - English - Adventure/Humor - Chapters: 3 - Words: 1,116 - Reviews: 11 - Favs: 6 - Follows: 9 - Updated: 2/21 - Published: 12/18/2014 - Clara O., 12th Doctor, Leonard H., Sheldon C.
What You Know by droidgirl reviews
Sheldon Meets the Doctor. The Doctor and Clara finally get together with no real complications. Penny and Sheldon angst at each other. Fluffy stuff!
Rated: K - English - Humor/Romance - Chapters: 1 - Words: 743 - Reviews: 2 - Favs: 5 - Follows: 2 - Published: 10/24/2014 - 12th Doctor, Clara O., Sheldon C., Penny - Complete
The Rising of the Nerds by agirlandherstories reviews
Rose and the Doctor are awoken to the sound of four repetitive knocks.
Rated: K+ - English - Chapters: 1 - Words: 259 - Reviews: 3 - Favs: 3 - Follows: 1 - Published: 3/15/2014 - 10th Doctor, Rose T., Sheldon C.
The Environment Exchange Paradigm by BadWolfz reviews
What happens when Penny and Sheldon find a blue box in Sheldon's living room? And what happens when the Doctor and Rose are stuck in Pasadena with a bunch of nerds? Only one way to find out... (10/Rose and Shenny)
Rated: T - English - Adventure/Romance - Chapters: 30 - Words: 68,670 - Reviews: 123 - Favs: 55 - Follows: 56 - Updated: 2/10/2014 - Published: 6/28/2013 - 10th Doctor, Rose T., Sheldon C., Penny - Complete
The New Conundrum by Dark Lunar Love 1914 reviews
Rose knew that this time traveling and jumping from place to place would get them in trouble one day, but meeting Dr. Sheldon Lee Cooper was the worst mistake yet.
Rated: K+ - English - Humor/Sci-Fi - Chapters: 1 - Words: 945 - Reviews: 2 - Favs: 7 - Follows: 2 - Published: 11/28/2013 - 9th Doctor, Rose T., Sheldon C., Penny - Complete
The Boiling Provocation by Adrian Tullberg reviews
In theory, everyone is useful ...
Rated: K - English - Humor - Chapters: 1 - Words: 948 - Reviews: 12 - Favs: 44 - Follows: 11 - Published: 6/18/2013 - 11th Doctor, Clara O., Leonard H., Sheldon C. - Complete
El Doctor & Sheldon Cooper by IsabellaGS reviews
El Doctor conoce a Sheldon Cooper y no es agradable.
Rated: K+ - Spanish - Humor - Chapters: 1 - Words: 839 - Reviews: 1 - Favs: 2 - Published: 6/14/2013 - Complete
The Blonde Collision by TheQuarryBeatles reviews
In a regular day at the Cheesecake Factory, Penny sees herself serving one of her favourite actress, Billie Piper. I've been having this idea for months, hope you enjoy! Oneshot (because I finally realized that I can only write those kind). Crossover. I think it's an AU…
Rated: K - English - Humor - Chapters: 1 - Words: 539 - Reviews: 5 - Favs: 13 - Follows: 3 - Published: 5/4/2013 - Leonard H., Penny - Complete
Sheldon Swifties XLIV: The Thai Dinner at the End of Time… by regertz reviews
Like my Immortal Beloved bits in my Buffyverse stories, these are fragments and short bits, some longer…Just to fiddle with ideas, possibly forming longer tales later
Rated: K - English - Romance/Humor - Chapters: 1 - Words: 2,245 - Reviews: 1 - Follows: 1 - Published: 3/25/2013
In Her Dreams by banana.x.phone reviews
Penny is picked up by the TARDIS, and joins the Doctor on a mission to save an alien planet from destruction. Penny and Sheldon as the Doctor.
Rated: T - English - Sci-Fi/Adventure - Chapters: 7 - Words: 9,866 - Reviews: 21 - Favs: 10 - Follows: 12 - Updated: 3/16/2013 - Published: 1/3/2013 - Penny - Complete
The Doctor & Sheldon Cooper by gingerwhovianrobotskeleton reviews
Ficlet. The Doctor meets Sheldon Cooper, and it's not pleasant.
Rated: K+ - English - Humor - Chapters: 1 - Words: 882 - Reviews: 36 - Favs: 80 - Follows: 18 - Published: 10/19/2012 - 10th Doctor, Sheldon C. - Complete
The Stolen Earth Equation by cheri1 reviews
10/Rose. Big Bang Theory Crossover. Sheldon, Leonard, Howard and Raj are visiting London when suddenly they're caught up in the events of The Stolen Earth. FINISHED.
Rated: T - English - Humor/Adventure - Chapters: 16 - Words: 22,710 - Reviews: 72 - Favs: 82 - Follows: 82 - Updated: 7/10/2012 - Published: 4/7/2011 - 10th Doctor, Sheldon C.
A Day with the Doctor by Jbird2000 reviews
The guys are playing Halo when a mysterious blue box shows up in their living room. Can they figure out how to help the doctor? SUMMARY SUCKS BUT GOOD STORY1 PLEASE READ & REVIEW!
Rated: K+ - English - Humor/Adventure - Chapters: 1 - Words: 739 - Reviews: 18 - Favs: 22 - Follows: 18 - Published: 3/5/2012 - 10th Doctor, Sheldon C.
Upsilon the DemonSlayer by goddess of trix reviews
TBBT/Charmed/DW: Two demons want to kill Sheldon. "Why?" you ask. Sheldon isn't Sheldon. Sheldon has a fob watch. And to top it all off, he hasn't much memory of his life before. Oh look! A blue box! Yay! Watch for angels. Don't blink.
Rated: T - English - Adventure/Humor - Chapters: 3 - Words: 5,008 - Reviews: 8 - Favs: 8 - Follows: 21 - Updated: 9/3/2011 - Published: 8/31/2011 - 10th Doctor, Sheldon C.
Saturday Morning Ritual by torchwoodtimelord reviews
Dr. Sheldon Cooper has a strict routine for his Saturday mornings. What starts as a programming error turns into quite a surprise.
Rated: K+ - English - Humor/Sci-Fi - Chapters: 1 - Words: 1,534 - Reviews: 34 - Favs: 83 - Follows: 11 - Published: 8/17/2011 - 11th Doctor, Sheldon C. - Complete
Silence by Bellalyse Winchester reviews
Penny doesn't believe in those science-fiction monsters...perhaps she should! After she walks into the gang watching The Impossible Astronaut, she experiences her own close encounter.
Rated: K+ - English - Sci-Fi/Humor - Chapters: 1 - Words: 985 - Reviews: 21 - Favs: 31 - Follows: 13 - Published: 4/24/2011 - Penny - Complete
The Physicist by gertie-flirty reviews
Written for ladyhouston and the Write For Relief meme. Prompt was: "Turns out Sheldon's a Time Lord. He takes Penny along as a companion."
Rated: K+ - English - Humor/Adventure - Chapters: 3 - Words: 5,184 - Reviews: 24 - Favs: 98 - Follows: 14 - Published: 4/13/2011 - 11th Doctor, Sheldon C. - Complete
One Sunday Afteroon Revised and Extended by charlie1902 reviews
"And his assistant, Doctor Sheldon Cooper". The Doctor introduces Donna to Leonard and Sheldon. Still WIP
Rated: K+ - English - Humor/Adventure - Chapters: 6 - Words: 8,195 - Reviews: 10 - Favs: 18 - Follows: 19 - Updated: 1/17/2011 - Published: 7/30/2010 - 10th Doctor, Sheldon C.
Tardis by Sunriserooftops reviews
What happens when Leonard meets the Doctor? COMPLETE
Rated: K - English - Sci-Fi/Humor - Chapters: 1 - Words: 421 - Reviews: 9 - Favs: 12 - Follows: 5 - Published: 12/4/2010 - 10th Doctor, Leonard H. - Complete
The Parallel Worlds Proof by amtrak12 reviews
aka Brilliant Collision - A familiar blue box lands in Leonard and Sheldon's living room. Why is it there? Are the Doctor and Donna now trapped forever in the wrong universe? - Epilogue now up!
Rated: T - English - Adventure/Humor - Chapters: 10 - Words: 14,001 - Reviews: 106 - Favs: 192 - Follows: 50 - Updated: 3/10/2010 - Published: 12/21/2009 - 10th Doctor - Complete