Downloading Podcasts on the Apple TV

tvOS & Apple TV Apps

Hi, a simple question, does anyone know how can I download older podcasts episodes on the Apple TV, when I subscribe to a podcast, it downloads the latest episode, but I can't seem to download the older episodes, can someone please let me know how to do this? I managed to get to the actions for each episode, but the download episode option is not there, all the other options, such as mark as unplayed are there, but not the download function.