Although there is some video noise, the picture quality is generally acceptable. Its slightly better than the VHS release but does not really offer much incentive for anyone still reluctant to leave VHS behind.

The sound quality is reasonable. The soundtrack is in its original mono, but the main thing is that the both the score and the sound effects are very effective. Cyril Ornadel scores the incidental music for this story. As with Assignments 2 and 4, the score for this story stands out (although it does feature an excerpt or two from the score for assignment 2).

The extras are not only quite basic, they are fairly static. To put it simply, all you get are a series of transribed notes with the odd still. Overall, I would rate the extras at 25%.

• ITC PRESS RELEASE
  Press Release for Assignment Six
• PHOTO GALLERY
  A series of stills from Assignment Six
• GUEST STAR SCREENOGRAPHIES
  Screenographies for David Collings, Christopher Fairbank, Edward de Souza

After the lightweight Assignment Five the series returned to a much darker type of story. For a change, the story begins with Sapphire and Steel already in place - at a service station which seems to be stuck in a moment of time. The clock, the radio, the road traffic beyond, the telephone, all repeat the sounds that take place over a few seconds.

Silver is also there, as are a man and a woman who think it is the 1950s. They are not the only ones who believe that something is not right. As the story progresses so time moves forward ten minutes, then twenty minutes and so on, and sinister events begin to unfold. A ghost of an old man appears at the back of the station. A travelling performer appears from nowhere. Sapphire and Steel begin to question the reason they have been sent to this place and eventually they arrive at a horrifying conclusion...