In this episode of Trekking Through Time and Space...

Hoai-Tran and Jacob learn the "Cost of Living" as Star Trek: The Next Generation introduces its most terrifying villain yet: an Alexander and Luwxana Troi team-up episode. But things are far more satisfying (and important) as Doctor Who says goodbye to William Hartnell and the First Doctor in the final two parts of "The Tenth Planet."

• Doctor Who: The Tenth Planet (Parts 3-4) - 1:30

• Star Trek: Cost of Living - 41:43

• Episode Rankings - 1:08:05

Logo by David Scaliatine.

Send all questions, comments, concerns, suggestions, and complaints to [email protected]

Support us on Patreon for early access to new episodes, weekly bonus episodes, and more.