The production number for this episode is 501 indicating it was the first episode made for season five. It ended up airing as the seventh episode of the season.
Meredith Eaton and Tobin Bell only appear by video feed, and are never present with the other actors.
The original title of the script was "Telescope + S-218 + Amplifier + Frenemies + Fog"; indicating that guest star David Dastmalchian should have been a guest star (as recurring character Murdoc). This was later confirmed by show runner Monica Macer in an interview with TV Guide Magazine in October. Filming started in November, meaning there must have been script and/or cast revisions in between.
Interesting Facts Conveyed by Macgyver:
- Much like a reformed murderer might use meditation to override the signals in his brain telling him to kill, a jammer functions by emitting a stronger signal, effectively overriding the RFID signal transmitted from Andrews's tooth.