I was disappointed that its only programmes recorded since the relaunch that can be viewed on an ipad. Otherwise, I think the new BoB is great. I particularly like that you have a larger time frame to record programmes.
You don't need to watch the video below; the key things you need to know are:
Over one million TV and radio programmes for education and research dating back to 2007
Additional content from the BBC archive before 2007
Access from the following URL and register: http://bobnational.net/