“Doctor Who” show runner, Steven Moffat was interviewed immediately following the closing moments of Saturday’s series finale, “The Big Bang.”

The interview was conducted by his son and has been posted to YouTube.

In it, Moffat talks about his inspiration for the episode and his thoughts on the season overall.

We’ve got it below, but be warned. If you haven’t seen the two-part finale yet, it contains SPOILERS!

https://www.youtube.com/watch?v=zs1mIAMTE0