Ask the BBC why they made no app for this model.
Ask Samsung why the browser doesn't work for this site. The usual answer is that a TV browser is severely limited compare with the latest versions of Chrome, Firefox or Bing and that you should use a dedicated app if available.
I bought what I thought was a good second set. I use IPlayer frequently. Have tried to find app for tv with no luck. When I try to watch it from web browser it tells me servic not supported. Anyone know why?