My new favorite game

These lyrics are the theme song from what sitcom?:

Maybe the world is blind,
Or just a little unkind.
Don't know.

Seems you can't be sure
Of anything anymore.
Although,

You maybe lonely and then,
One day you're smiling again.
Every time I turn around,
I see the girl that turns my world around.
Standing there...

Everytime I turn around,
Her spirit's lifting me right off the ground.
What's gonna be ?
Guess we'll just wait and see.