Randall and Hopkirk (Deceased) (1969) Season 1 Episode 17

GOOF: When Jeff breaks into the greenhouse;can anyone explain how the greenhouse door is locked from the inside? The only other way out would be via the tunnel but then how could its entrance have been concealed by anyone after they had climbed inside the tunnel?

GOOF: How can someone dig a tunnel under graves that are six feet down and encased in concrete?

GOOF: Jean finds Jeff after searching for him, yet without any contact with Jeff she knows that Harry has been kidnapped.

GOOF: It is very obvious that someone other than Mike Pratt is in a number of scenes where Jeff's back is to the camera (this was supposedly due to Pratt's legs being broken).