The Licence to which Quoi has made reference, is the normal TV Licence. Although I fail to appreciate how the Licencing Authority is going to know if you are watching 'catch-up' TV on a computer/laptop/tablet, etc.
Now to your 'problem' mikey........There is Not any special technique to copy and paste into AB a link to an iPlayer page. Just do as normal. If it doesn't work it could suggest that there is something wrong with your equipment.
I'll try posting one now :-