![I can't sleep on your couch.
I sleep in a bed.
I can't sleep on your couch.
I sleep in a bed.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
I can't sleep on your COUCH.
I sleep in a bed.
The Big Bang Theory Season 2, Episode 21
![I'm giving you my spot on the couch.
I'm giving you my spot on the couch.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
I'm giving you my spot on the COUCH.
The Big Bang Theory Season 4, Episode 7
![...where a tray of flatware
on a couch is valid?
...where a tray of flatware
on a couch is valid?](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...where a tray of flatware
on a COUCH is valid?
The Big Bang Theory Season 1, Episode 2
![...that an old boyfriend is gonna sleep
on her couch.
...that an old boyfriend is gonna sleep
on her couch.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...that an old boyfriend is gonna sleep
on her COUCH.
The Big Bang Theory Season 3, Episode 7
![Sheldon's zombie, when he
popped up from the couch.
Sheldon's zombie, when he
popped up from the couch.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Sheldon's zombie, when he
popped up from the COUCH.
The Big Bang Theory Season 12, Episode 24