Yea! We finally did a Donna Noble episode. What brings us to this one? You guessed it. Jenny! The Doctor's Daughter. Ashford admits that he wasn't too keen on revisiting this episode, but after another viewing, he quite liked the story structure and heavy handed themes.
Also, there are a lot of defining who and what the Doctor is in this one. Darrin, Ruth, Siskoid, and Ashford talk about Jenny and what constitutes a Time Lord.