The list of certified devices at https://www.bbc.co.uk/iplayer/help/questions/supported-devices/humax doesn't include the FVP-5000T but it does include the FVP-4000T which has very similar hardware to the FVP-5000T and runs the same software. Humax advertising at https://uk.humaxdigital.com/product/fvp-5000t/ certainly includes iPlayer.The BBC iPlayer team were quite clear in their response to me and it was very polite and informative, they said "I've checked your Humax model, FVP-5000T, unfortunately it hasn't been certified for use with the iPlayer app. This means while the app may work on the device, we can't guarantee a good user experience. We only support devices which are certified so you may experience issues with BBC iPlayer on uncertified devices." Which I think is fair enough.