
Which, other than its
surprisingly fun PUZZLE page,
The Big Bang Theory Season 7, Episode 17

Apparently, he's 12-down in
the TV Guide crossword PUZZLE.
The Big Bang Theory Season 7, Episode 19

where the last PUZZLE gives the winner
Sheldon's contact information.
The Big Bang Theory Season 9, Episode 8

The first PUZZLE is a PUZZLE!
The Big Bang Theory Season 7, Episode 3

And that was the last face needed
to complete the jigsaw PUZZLE
Money Heist Season 1, Episode 8