This week, we begin the first of a two-part commentary for “The Two Doctors”, a Robert Holmes romp with Two, Six, hipster cannibals, tall Sontarans, and Elton John as a disco scientist. Enticing! But before the main event, the Three Who Rule reflect on the 50th anniversaries of both Star Trek and The Prisoner, two shows that along side Doctor Who were seminal viewing experiences for their younger selves. Dive into the past with us, won’t you?
This week, we begin the first of a two-part commentary for “The Two Doctors”, a Robert Holmes romp with Two, Six, hipster cannibals, tall Sontarans, and Elton John as a disco scientist. Enticing! But before the main event, the Three Who Rule reflect on the 50th anniversaries of both Star Trek and The Prisoner, two shows that along side Doctor Who were seminal viewing experiences for their younger selves. Dive into the past with us, won’t you?
Doctor Who: Radio Free Skaro 
Q: In ep 1 of 2 Doctors, does Nicola Bryant mouth the word “Asshole” when The Doctor comments what a good idea he’d had to go see a Doctor?
“Is that so.” (Even though “[staser blast]hole” is a more appropriate response.)
You need to listen to The Black Hole from Big Finish.
https://www.bigfinish.com/releases/v/the-black-hole-1078?range=106
That now provides a new explanation as to from where the 2nd Doctor and Jamie were coming into this adventure.