If we're talking ux it's how people search as well. We've got LATCH for that. Location, alphabet, time, category and hierarchy. On the BBC website people might search for a 'detective' (category), but also might search for 'tomorrow, this week' (time) or 'most viewed' (hierarchy).
I've always found the search on iPlayer to be next to useless. Haven't got a specific search to demonstrate, stopped using it after I deleted flash. It's a real shame the BBC continue to use flash and recommend Adobe reader when they link to a PDF. I've emailed recommending some alternative but never heard anything back.
