A featured song is "Respect Yourself", sang by Bruce Willis. Willis also played gun runner Tony Amato in No Exit (1984).
The security man questioned by Crockett and Tubbs refers to a "burst transmitter." This is a unit that takes a file (audio, code, image, or whatever) then compresses it to the smallest usable size and then transmits it at an ultra-high speed. This is commonly used with satellites and high-end receivers.
This story has similar thread with The Conversation (1974) in which a surveillance expert who is so extremely familiar with the technology and the damage that can be done that he is driven to the point of madness.
The reel-to-reel recorder with the tape that Duddy splices with the editing block is called a Nagra. This is an extremely high-end portable recorder that was often used with film and television projects. By using a cable, it has the capability to synchronize with the studio's video tape playback via SMPTE timecode. It is typically used with a form-fitting clear plastic lid. At the time of filming, the cost was approximately $4,500 in 1987 dollars. This was obviously not a rental but was part of the series' regular assortment of production gear.
Steve Duddy was under consideration to be part of The Big Thaw (1987), in the role of the "thawer" of Robillard Nevin's body, but the part was re-written as Izzy Moreno when John Glover proved unavailable.