We asked Chris Granner to tell us about the music for this game. He replies:

The main play tune for TZ is a WPC (synthesized) version of the loooonnnng guitar solo section from Golden Earring's "Twilight Zone". The Jackpot tune is a WPC version of the CHORUS of that song, where you hear the main melody of the song. There are snippets and takeoffs from dozens of TV show moments, way too many to list. The actual AUDIO from either of these sources is NOT reproduced in TZ pinball.

In this listing is an image of a playfield under blacklighting, revealing a serial number. We asked Pat Lawlor why the manufacturer did this. He replies:

The reason for the serial numbers seems strange by today's standards. In 1992, Williams' agreement with its distributors gave them exclusive sales right to a territory. They did not have the right to sell outside of their territory. But some were doing just that. In order to track the game's origin from a distributor into the wild, the blacklight number was added. Williams knew where the game was originally shipped. If the game turned up outside of that territory, it was assumed that the distributor had "Bootlegged" the game outside of his territory. Then it was up to management to decide what penalty to incur on the offender. Remember, this was during a time when it was PROFITABLE to sell and operate pinball machines. This practice would be laughable today because ANY sale of a pinball machine is a good sale.