I have been following this series from the start and I would say that while the episodes often have weaker elements, the characters are well cast and likable. As mentioned however, it could be said there is often an awkward moment too many in a series with great potential. The turning point however has to have been Episode 5 "The Debate" in which I really felt this potential had begun to be reached. There were many laughs in this episode with some genuinely clever script writing. It is arguably quite late in the series to warm up but warm up it does and while its certainly not the funniest show out there it is an enjoyable, light hearted program. I have developed a real interest to see how the series ends and that combined with the flashes of genius (think "the brave-heart card")it makes this a current favourite on BBC.