Apart from the previous Comic Relief Special with Johnny Depp, this is the first official standard episode in widescreen, but still the second widescreen story at this point in the series.
In theory, Geraldine would now have been in Dibley for around 5 years approximately in real time, based upon the various Easter and Christmas events the audience have seen her involved in, as well as the 14 month period Hugo and Alice were "on honeymoon".