A background story involves extensive repairs to the vice department office building, which is falling apart. This was not far from the truth. Some time after the end of the series, the building used to represent the vice department was torn down and a modern high rise erected on the site.
Working Title of this episode: "Soul on Ice"
The building where the cryogenics lab was, the Fountain of Youth Nursing Home, was actually the site of the old South Beach Elementary School, closed due to the general deterioration of the area. Now a new school, South Pointe Elementary, sits on the old foundation of the previous building.
This is one of two episodes (Missing Hours (1987) being the other) where the series borders on science fiction. In 1987 no such cryogenic technology existed, though it had been theoretically proposed since the early 60s. Currently it does, but only in experimental form.
Before appearing on television, Izzy says, "I can hear those fighter planes, I can hear those fighter planes." This is a lyric from U2's song "Bullet the Blue Sky."