It was right there
on that COUCH.
The Big Bang Theory Season 12, Episode 6
despite your objections--
I bought this COUCH.
The Big Bang Theory Season 7, Episode 16
So, what did Justin say when you told him
he couldn't sleep on your COUCH?
The Big Bang Theory Season 3, Episode 7
Uh, the COUCH is good.
The Big Bang Theory Season 1, Episode 7
...where a tray of flatware
on a COUCH is valid?
The Big Bang Theory Season 1, Episode 2