This episode sees Andy make a hugely nostalgic trip back to 1983 and his memories of the events that surrounded the first broadcast of this anniversary special.

Elsewhere Alex professes her love for the gold transmat device and learns all about the UNIT dating and Series 6b controversies, while Andy reveals his long-term confusion over the relationship between the Game of Rassilon and The War Games.

The pair also ask and attempt to answer many big questions:- Why is Tegan so skilled at fruit platters?- What is the application of pi to the chessboard floor?- Who built the TimeScoop?- Why is the 1st Doctor so disinterested in the Master?- And couldn't Borusa have just transmatted to the Dark Tower and swiped the ring in the first place?

There's also a quiz and much more besides. Enjoy!

Next Time: The Space Museum