Excellent news from today's "Belfast Telegraph"... Peter is going to be guest starring in "Grantchester":

"Former Doctor Who actor Peter Davison will guest star in the series as Geoff Towler, the village solicitor, captain of the cricket team and a man who rules his family with a rod of iron."

You can read the entire article here:
http://www.belfasttelegraph.co.uk/entertainment/news/grantchester-returns-for-christmas-special-and-third-series-34978633.html