In episode 02, The Body, Nick and Graham talk about the purposes and qualities of a camera body. 

Nick talks about exquisite beauty (6:00); the hosts describe the seven components of a camera (14:20); they focus on the body of a camera (19:30); Nick realizes he is late in starting his Garbage Cam Challenge project (24:15); the four main functions of a body are listed (35:00); the guys talk about lens flange distance and how it relates to the body of a camera (46:30).