Dorset has always been a bit of a dogs breakfast as far as broadcasting regions are concerned.
Indeed. On television, it is split between South (the lion's share of the county), West, and South West.
Buckinghamshire would be another example that is awkwardly split across a few TV regions - London, South (Oxford sub-region), and East (Cambridge sub-region).
Does BBC Radio Devon editorially include news and information relating to e.g. Lyme Regis / Bridport / Abbotsbury etc?