If you are watching iPlayer on your TV the programmes are usually available for a month, but the info tells you how long it's available for. It is possible to record from iPlayer, although I've never tried. here's the info!
I forgot to record a programme on BBC4 I have now found it on BBCI PLAYER. I have always watched programmes before not downloaded them. If I download the programme will it just appear like an App does and does it disappear after a short while ? I would want to keep it is possible. Thanks.