This is – IMHO – really the most beautiful and romantic love-song a nerd can sing to his girl-friend.
I still watch TBBT every week, but unfortunately the episodes are not as good, funny, or at least “nerdy” anymore as they used to be, especially in the second and third season. The girls in the show shifted the centre of gravity of the story to the love-affairs of the four friends, instead of having fun with Geek LifeStyle.

However, this episode, S07E06 “The Romance Resonance”, was for once very good again, and the song, that Howard wrote and sang for his wife Bernadette (since it is the anniversary of their first date), proves that the makers can still add some geeky flavor into it.
More of that, guys; please!! There are already too many trite TV-shows about vapid teenage people with their shabby love-troubles.
If I Didn’t Have You (Bernadette’s Song)
If I didn’t have you
Life would be blue
I’d be Dr. Who without the Tardis
A candle without a wick
A Watson without a Crick
I’d be one of my outfits without a Dick-ie
I’d be cheese without the mac
Jobs without the Wozniak
I’d be solving exponential equations that use bases not
found on your calculator making it much harder to crack
I’d be an atom without a bomb
A dot without the com
And I’d probably still live with my mom
And he’d probably still live with his mom
Ever since I met you
You turned my world around
You supported all my dreams and all my hopes
You’re like Uranium 235 and I’m Uranium 238
Almost inseparable isotopes
I couldn’t have imagined
How good my life would get
From the moment that I met you, Bernadette
If I didn’t have you
Life would be dreary
I’d be string theory without any string
I’d be binary code without a one
A cathode-ray tube without an electron gun
I’d be “Firefly,” “Buffy” and “Avengers” without Joss Whedon
I’d speak a lot more Klingon Heghlu’meH QaQ jajvam
And he’d definitely still live with his mom
Ever since I met you
You turned my world around
You’re my best friend and my lover
We’re like changing electric and magnetic fields
You can’t have one without the other
I couldn’t have imagined
How good my life would get
From the moment that I met you, Bernadette
Oh, we couldn’t have imagined
How good our lives would get
From the moment that we met you, Bernadette
Published on Oct 24, 2013
Written by Kate Micucci and Riki Lindhome
Published by Warner-Barham Music LLC (BMI)
Performed by Simon Helberg, Johnny Galecki, Jim Parsons, Kaley Cuoco, Kunal Nayyar, and Mayim Bialik
& © 2013 Warner Bros. Television