Planet Knowledge - Documentaries On Demand The 'Planet Knowledge' Video On Demand service brings you hundreds of hours of premium factual programs, many in glorious high definition. Categories include Nature, Science and Technology, History, People and Culture, Travel and Kids Educational. All English speaking one-off programs, miniseries and series. The service offers and extensive range of free programmes on demand with new documentaries being added every month. Viewers also have the option to subscribe to the channel for access to additional programmes, without adverts, for only £2.29 per month The Video On Demand model - For the first time in the UK & EIRE, this diverse premium content offering, including high definition, is presented free of charge. No subscription fee, no monthly obligation. Watch fresh and engaging content whenever you want. The Subscription Video On demand model - Offered for a monthly fee of £2.29. In addition to categories such as Nature, History, Science &Technology, People and Culture, subscribers can watch lots of additional compelling programming, without advertising with the majority of programmes shown in high definition (HD). Subscription payments will be charged to your iTunes Account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off (by going to account settings) at least 24-hours before the end of the current period.