In 1944, the Pacific Railroad
built number 6131,
The Big Bang Theory Season 7, Episode 15
...um, I embarked
on a RAILROAD journey of healing...
The Big Bang Theory Season 8, Episode 1
down by the RAILROAD tracks."
Breaking Bad Season 2, Episode 12
There are dozens of RAILROAD crossings
you have to blow the whistle for.
The Big Bang Theory Season 10, Episode 15
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