Since each episode is sort of like a chapter in a book, I think you should see these in order. Here they are:
(By the way, at the bottom of each Chapter page is a PDF of its transcript.)
Chapter 1 – How the West was Lost
Chapter 2 – Defining The Problem
Chapter 3 – Garbage In, Garbage Out
Chapter 5 – Benthamite Principles
Chapter 6 – If We’re So Dumb, How Come We’re Rich?
Chapter 7 – Is Everybody Happy?
Chapter 8 – The March of Science
Chapter 9 – The Box That You Can’t Think Outside Of
Chapter 10 – So Why Am I Really Doing This?
Chapter 11 – Those Enlightenment Values
Chapter 13 – Sometime Around The Year Zero, Greece
Chapter 14 – Sometime Around The Year Zero, RomeĀ
Chapter 15 – Sometime Around The Year Zero, Christianity
Chapter 16 – That Lost Millennium
Chapter 18 – The Renaissance That Wasn’t
Chapter 19 – The Reform(ul)ation
Chapter 23 – Gods and Parameters
Chapter 26 – The Utility of Nations
Chapter 27 – Problems With The Logic
Chapter 28 – American Exceptionalism
Chapter 29 – The Head and the Heart
Chapter 31 – Romance and Peace
Chapter 32: Approaching The Cusp
Chapter 38: The Hypersocial Animal
Chapter 39: This Cambrian Moment
Chapter 42: The Glue of Empire
Chapter 44: Being of Two Minds
Chapter 45: Marshmallows & Dopamine
Chapter 50: Summarizing Science
Chapter 55: This Endless Moment
Chapter 62: Democracy: Who Needs It?
Chapter 64: Postmodern Derangement Syndrome
Chapter 66: So You Say You Want A Revolution
Chapter 67: Crawling Back Up The Slippery Slope
Chapter 68: A Strong Woman Is An Oxymoron