Karen appeared on the BBC Breakfast programme this morning just after 9am.
It's a flash video and doesnt seem to want to let me embed, so I shall link to their post instead.
Contains clips from Let's Kill Hitler, but nothing that hasn't already been seen on the intertubes Karen does talk about future episodes in the current series, YMMV on how spoilery they are, as there's nothing mentioned here that hasn't been mentoned elsewhere, but use your best judgement.