The "one off" episodes, both the Wicker Man and A Rollercoaster Year, felt like they were lacking depth. There's just random bits and pieces thrown in. It was interesting to see, but not really any storyline, no real introduction or build up of characters, no aim or continuity to the various scenes, problems, etc. To me it seems like they collect loads of footage and then due to the time constraint of a single episode, most of it ends up on the cutting room floor and lots of context gets lost. If they could make a series, perhaps of smaller episodes but give each one a purpose, it would be much better. For example look at different departments or different problems each week and see it to a conclusion. However, is there an appetite outside of this forum for such a series? I'm not sure.