Star Trek: The Next Generation, Series 5, Episode 9. First broadcast on Monday 18 November 1991.

The absence of Robin Williams and the presence of Rick Berman are both keenly felt this week, as a normal day at the office for the Enterprise-D becomes merely a mildly diverting day at the office. The cause: an elegantly named time-travelling confidence trickster, who nicks a bunch of stuff so he can put it on eBay and pretends that everything here is much more thrilling than it actually is. Let’s say three-and-a-half stars, but two of those stars are for Marina Sirtis’s performance.