It's not hosted on "our own website" - our licence fee isn't paying for it, neither is HM Government; hence we cannot read it because the BBC cannot engage in commercial activity - I assume it has ads, or maybe a paywall - in the UK.
> BBC WORLDWIDE IS THE MAIN COMMERCIAL ARM AND A WHOLLY OWNED SUBSIDIARY OF THE BRITISH BROADCASTING CORPORATION (BBC). OUR VISION IS TO BUILD THE BBC'S BRANDS, AUDIENCES, COMMERCIAL RETURNS AND REPUTATION ACROSS THE WORLD.
> BBC Worldwide helps keep the Licence Fee as low as possible, returning £222.2m to the BBC in the last financial year, an increase of 17.6% from 2014/15, adjusted for disposals, and equivalent to 13.0% of BBC Television content funding in the year.
Why, though, they don't duplicate the content with the IP-restriction instead of paywall/ads/whatever it is, I'm not quite sure.