Total Riff Off was a series of RiffTrax Riffs that aired on National Geographic Channel as well as NatGeo Wild!. They featured archive footage of previously aired National Geographic material with audio commentary by Michael J. Nelson, Kevin Murphy and Bill Corbett.
The first three episodes, "Killer Shrimp and Friends", "Demon Bat" and "A Guy and a Goose," originally aired on April 1, 2014 and were each repeated once that same evening. A follow-up of two episodes, "Man v. Monster (w/ Richard Terry)" and "Animals Behaving Badly", were aired on December 16, 2014.
The episodes were made readily available a week immediately after airing on RiffTrax's official website to download and stream.