Despite several firmware - software upgrades and now on latest version 1497 (March 08 2021) BBC iPlayer and BBC sounds app sometimes just don't work. When I select either app from home screen I just get a black blank screen. I have to press home button again and then select app which then kicks me back to the TV channel I was watching before. Quite infuriating. All other streaming apps work flawlessly. I have done a factory reset and smart hub reset as advised by Samsung Support but this doesn't provide a permanent fix. A week or so after doing both resets the problem occurs again. The only way I have found to cure the problem is to power the tv off with the remote and then switch off at the wall socket and then power back on after approx 30 seconds. After power off/on cycle BBC iPlayer works again fine, but will then fail again after a several days. This is a temporary fix workaround but not really acceptable on a brand new TV.