![Based on the glowing reception of our
recent Behind the Flags Retrospective,
Based on the glowing reception of our
recent Behind the Flags Retrospective,](https://content2.mcqstudy.com/ss/tbbt-10-21-00:18:51.256.jpeg)
Based on the glowing reception of our
recent Behind the Flags Retrospective,
The Big Bang Theory Season 10, Episode 21
![](https://content2.mcqstudy.com/ss/tbbt-10-21-00:19:03.184.jpeg)
"A Retrospective Retrospective."
The Big Bang Theory Season 10, Episode 21
![And welcome to a special retrospective,
And welcome to a special retrospective,](https://content2.mcqstudy.com/ss/tbbt-10-21-00:00:18.019.jpeg)
And welcome to a special RETROSPECTIVE,
The Big Bang Theory Season 10, Episode 21
![](https://content2.mcqstudy.com/ss/tbbt-10-21-00:00:27.737.jpeg)
"Fun with Flags, Behind the Flags,
A Retrospective."
The Big Bang Theory Season 10, Episode 21
![It's fun with flags, behind the flags
A retrospective
It's fun with flags, behind the flags
A retrospective](https://content2.mcqstudy.com/ss/tbbt-10-21-00:00:47.924.jpeg)
It's fun with flags, behind the flags
A RETROSPECTIVE
The Big Bang Theory Season 10, Episode 21