Mark Steel has been touring the country for quite a few years now, doing his 'In Town' shows. He does a lot of research, and wanders around the town, and then does a show where he gently explores some of the local culture, including quotes from bulletin boards and online discussions. A sort of cultural geography / sense of place type approach to a comedy show.
King's Lynn was the subject of a recent show.
As a resident of the town for ten years, and having spent twenty years working there and teaching a few thousand of its residents, I know all the references here, and was amused to hear someone shout out "this is West Norfolk" when Mark referred to King's Lynn as being in North Norfolk... as he pointed out - if you go North from Lynn you end up in the sea, so that must make it fairly north within the county... also plenty on the rabbits of Hardwick Roundabout and a passable accent...
Listen to the show here.
Some more clips and bits from previous series here, and I guess you could find out whether he'd been to your local area, and search BBC Sounds for more.