On at Christmas on ITV?

I remember as a kid pouring over the Christmas TV Times and there was something on one of the ITV channels about a space drama. I think it was a whodunnit type show and for some reason I remember a picture of a pink set or pink hue or such like.

Of course time has probably corrupted my memories but I'd love to know if it was this show. Except I see that this might have been on ITV in August one year so that would throw me completely!