...a hot dog stand
in a converted RAILROAD dining car.
The Big Bang Theory Season 4, Episode 6
...um, I embarked
on a RAILROAD journey of healing...
The Big Bang Theory Season 8, Episode 1
You'd have to drive a RAILROAD spike into
his brain for me to beat him at checkers.
The Big Bang Theory Season 2, Episode 11
In 1944, the Pacific Railroad
built number 6131,
The Big Bang Theory Season 7, Episode 15
down by the RAILROAD tracks."
Breaking Bad Season 2, Episode 12