However you need to watch out for the occasional 'Simulcast' - where it's being broadcast on live TV AND the iPlayer at the same time.
Could you elaborate Fluffs, please?
Here goes.....
Occasionally the BBC will have a pgrogramme available to watch on the iPlayer AT THE SAME TIME as it is broadcasting it on mainstream TV. The iPlayer will (should) indicate this is a SIMULCAST and the time of the Simulcast. If you watch/record/download at anytime during this Simulcast you would need a license. If you watch/download AFTER the simulcast is finished, then you won't need the license.