![I challenge you to find a single reference
to Kryptonian skin cells.
I challenge you to find a single reference
to Kryptonian skin cells.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
I challenge you to find a single REFERENCE
to Kryptonian skin cells.
The Big Bang Theory Season 1, Episode 2
![Is that a reference
to my speech impediment?
Is that a reference
to my speech impediment?](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Is that a REFERENCE
to my speech impediment?
The Big Bang Theory Season 7, Episode 10
![...you might wanna skip the reference
to bowel movements.
...you might wanna skip the reference
to bowel movements.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...you might wanna skip the REFERENCE
to bowel movements.
The Big Bang Theory Season 1, Episode 1
![I marked the calendar
for future reference.
I marked the calendar
for future reference.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
I marked the calendar
for future REFERENCE.
The Big Bang Theory Season 1, Episode 4
![In reference to a database
much larger than anything
I know of in the park.
In reference to a database
much larger than anything
I know of in the park.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
In REFERENCE to a database
much larger than anything
I know of in the park.
Westworld Season 2, Episode 4