The first episode that Peggy mentions her son Toby and talking to him on the phone.
When Jill Ireland appeared in this episode she was already married to actor Charles Bronson.
Last appearance of Martin Braddock as Intertect employee Parker.
First episode that makes reference on why Mannix quit from Intertect:
Mannix While talking to Jody (whose Deaf)
" Well one day I got fed up and I, uh, cussed at the machine.
I think I heard it cuss back, so I quit."
The second season introduction of Mannix, uses footage from the episode "To The Swiftest, Death".
This is the first appearance of Gail Fisher as Peggy Fair, Mannix new assistant.
Joe Mannix's ride was a dark green 1968 Dodge Dart GT convertible.