Whether you are at home or touring in your motorhome, caravan or tent you need a TV Licence to watch or record programmes on any channel as they are being shown on TV or live on an online TV service. If you have a licenced TV at your home and you watch or record TV programmes on an additional TV in a touring caravan or vehicle, or a boat, you do not need a separate TV Licence; you will be covered by the TV Licence for your main residence. If the television in use in a motorhome is the only or main television then a licence will be required. These can be registered using the registration number of the vehicle and an address of a designated site (a permanent address or, most likely, the pitch which is used most regularly). For those people living and travelling in their motorhomes who don't have a regular pitch, a postal address where mail is received, such as an accommodation address or PO box can be used.
Note that from 1st September 2016 you must be covered by a TV Licence to download or watch BBC programmes on iPlayer – live, catch up or on demand. This applies to any device and provider you use.