Apparently there is or was a Linux version of the BBC iPlayer. While Googling it I came across Get_iPlayer, a Linux command line program that downloads content from the BBC web site, but without the 30 viewability limit that iPlayer apparently imposes.
There's a useful tutorial at christopherdowning.co.uk.
The Get_iPlayer website says:
The BBC may at some point choose to effectively protect their streams with DRM or some ‘effective technological measure’ in which case get_iplayer will no longer be a useful tool for those streams.So it may not work forever.
There are of course some legal and moral issues in downloading BBC content in a fashion that the corporation never intended which now follow:
ZZZZZZToo boring, read it on the web site.