Jumped The Shark.
I never thought I'd say this about something Jennifer Saunders has written, but Series 3 has totally Jumped The Shark.
All the signs are there:
Major cast members leaving or absent for entire episodes (Joanna Lumley, Doreen Mantle, Pauline McLynn, David Michell, Simon Farnaby...).
Change of format (spreading a 30 minute story over an hour thus spreading the jokes far too thinly).
And the big one, the completely outlandish storyline in episode 2 (I won't put spoilers in, but it involves the Vicar, a letter, a hillside, and another cast member).
And other things are just plain slipping. The usually brilliant Dawn French keeps slipping out of character, there are continuity errors, and in last night's episode Jennifer Saunders was supposed to be hosting a dinner party and was clearly talking to an empty room - where's the credibility.
Jam and Jerusalem is dying on its feet and the first casualty is the sharply written observational humour.
The only thing that shines out of this mess of a series is Sue Johnston's performance, which is as sterling as ever.
Please god don't let there be a Series 4.