Correction: I had too much B physics on the mind. For my ficitional quark doublet I meant to say (u d) (u_prime d_prime) and not (b d) etc since there is no such thing.
All four videos in this series are in this playlist:
• About Graduate Physics
First video: getting there
• About My Graduate Physics Experience 1 of 3
Second video: books and qualifying exams
• About My Graduate Physics Experience 2 of 3
Third video: the research
• About My Graduate Physics Experience 3 of 3
Fourth and last video: String Theory Rant
• String Theory Rant