I just try my best to forget that whole lot. Red Dwarf, in large, has done reasonably well to explain itself in a lot of cases. In Timeslides though, I would have thought that even in the worst case scenario Holly would have remembered what the photos could do. But hey - they know that they're obviously restricted to the frame and, let's face it, maybe the ship never stocked porn. Meltdown's matter paddle was destroyed in Demons & Angels, which did the trick. I was never a fan of the whole "Lister is his own father" storyline and I'm not sure I like it being brought back up. It does seem good though that they're addressing old plot points - this one and, from the sounds of it, the aftermath of RD8.