![Is Is](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Is "back on TRACK" a hint
that it has something to do with trains?
The Big Bang Theory Season 10, Episode 11
![I swear it was like
sleeping on a train track.
I swear it was like
sleeping on a train track.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
I swear it was like
sleeping on a train TRACK.
The Big Bang Theory Season 10, Episode 5
![I don't know,
I lost track and I missed my exit.
I don't know,
I lost track and I missed my exit.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
I don't know,
I lost TRACK and I missed my exit.
The Big Bang Theory Season 9, Episode 18
![How would one track him down,
I wonder.
How would one track him down,
I wonder.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
How would one TRACK him down,
I wonder.
Breaking Bad Season 3, Episode 13
![No, what's disgusting
is he's still keeping track.
No, what's disgusting
is he's still keeping track.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
No, what's disgusting
is he's still keeping TRACK.
The Big Bang Theory Season 6, Episode 3