U now has a third series of Whitstable Pearl available. I’m a couple of episodes in and enjoying it so far.
It also struck me that the “white post” of the theme tune is almost certainly a reference to the town in which the drama is set. It is commonly suggested (although not without some opposition) that “whit” derives from white and “stable” indicates a post, a meeting place or a meeting place marked by a post. I tend to be cautious about place name histories that seem conveniently straightforward but it is highly likely that it at least explains the choice of song!