What is a 'pickup' in reality TV production?

What is a 'pickup' in reality TV production?

Richard Hall (Reality TV Producer) gives expert video advice on: Where do TV crews stay when shooting in the wilderness or extreme settings?; How do adventure reality show producers prevent crew members from helping the cast?; How dangerous are the stunts on adventure reality shows? and more...

A pickup is to go back after the fact and ask about something that you probably should have asked about when it happened. You find when you are putting the reality show together that you are missing somebody's opinion or reaction to something so you ask them later and you play it back as if it was real-time.