A live programme听is what's being broadcast on a TV channel at that moment, or an event that's being broadcast at the same time that it's happening, for example, live football matches, concerts, ceremonies. These can be watched at the live point, or if your device supports it, rewound to the beginning (up to two hours).听听
On-demand听programmes (or听video on demand/VOD)听are programmes that aren't live, and that you can watch whenever you want. They tend to be programmes that the 成人论坛 has already broadcast on a TV channel, or programmes that are available exclusively on 成人论坛 iPlayer. On-demand programmes are available on 成人论坛 iPlayer subject to availability and programme rights.