I used to love this show, thought it had a good balance but every episode of series 3, so far, is preachy and focuses on a different way we're all failing. I don't mind the odd prick of conscience but I watch TV for a bit of escapism, not to be lectured... it's somewhat arrogant to assume every viewer needs educating or that it's the producers job to do so. It wouldn't be so bad if it wasn't at the expense of the characters stories which seem to feature less and less and are reduced to snippets around the preaching. Hope series 4 achieves a better balance of story and moral issues.