The card game Euchre is played with twenty-four cards. In it, the Jacks are called bowers (spelled Bauer, in German).
Many of the technological computer terminology that is spoken is fictional.
For the season finale of the first season, and many episodes in the following seasons, a warning for graphic violence was added.
In the UK, the show was broadcast on BBC 2. The BBC does not run commercials during programming. Because of this, the episodes do not run in "real time". To account for this, every episode cuts out the opening line, "Events occur in real time".
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