Whilst it is good to see the BBC finally supporting Linux users. For anyone that doesn't already know, we had to wait so long that an OSS alternative to the BBC download software exists that actually provides more functionality.
http://linuxcentre.net/getiplayer/
No GUI I am afraid but no DRM on the downloads either..plus it can pick up files past the download time limit, just a h.264 file you can watch when you feel like it.
To use get_iplayer.pl "search string" will look at the site and return matches. Adding a -g will download them.
Look in the help pages for more information, it is aware of what it has previously downloaded so you can for example cron it with a list of favourite programmes and it will work as a sort of retrospective PVR getting the latest one as soon as it appears.
This is really good and it sounds then as we have even more functionality in Linux than Windows or Mac! Excellent!