'Belvedere' - Italian for 'Beautiful View'. But of course it's pronounced differently in that language, with the final 'e' sounded, making four syllables instead of three, and the stress is on the second syllable, not the first.
With Alan Davies playing a modern-era Henry Higgins, such issues of phonetics become important, but I do rather doubt whether in the modern world of children being exposed from birth to television and the internet, even Davies himself could detect any vocal difference between someone from Loughton, where he was born, and someone from Woodford Green, a couple of miles away, where he went to school. The modern ultra-ugliness of 'Estuary English' has totally destroyed such distinctions over the course of the post-war era.
But there is such a thing as artistic licence, including the notion that Dodds could acquire such a comprehensive grasp of phonetics from just six hours in the library. This does not in any way undermine the plot.
And it truly is a cracker of a plot, almost Christie-like, which keeps us guessing right the way through, and delivers a final Christie-style denouement to match.
The strength of this absolutely unlikely pairing simply grows and grows, and the arrival of a new boss merely turns out to be another challenge, a hurdle they so easily overcome, leaving the boss utterly amazed by them.
I initially gave it 8/10, but the more I digest it all, and also add in the bonus of a tour-de-force from 89-year-old Siân Phillips, including lots of her native Welsh, I think I must upgrade that to 9/10.
Excellent viewing!