Fair rating? 0 0MacGyver· Season 6 · Episode 6Lesson in EvilS06E06·8.9·October 29, 1990·1h·ABCDr. Zito returns to menace MacGyver and Murphy when he escapes after his latest sanity hearing, leaving a series of nasty clues designed to give Mac a crash course in evil.Streaming on (US) See allShare#2In Season 6of 21 rated episodes#20All-timeof 139 rated episodes+0.8vs season avgSeason 6 averages 8.11990First airedOctober 29, 1990PreviousThe WallS06E05 · 8.5NextHarry's WillS06E07 · 8.5Keep going
