Nowhere near as many people saw the sequel to Pedigree Dogs Exposed, broadcast in 2012, as it aired on BBC Four rather than one of the BBC's main channels.
Here's the Pug sequence. This is actually a slightly longer not-quite-final version of what appeared in the programme, so it contains some extra footage and the commentary is "guide" (i.e. not the final professional recording of it). The graphic doesn't animate either, although you'll get the idea. Apologies to Professor Gerhard Oechtering for the terrible pronunciation of his name - we got it more right in the final version!