Using pi as wifi hotspot but through VPN.

My folks live in Portugal and would like to use a now TV box to access BBC and the other on demand services.
is it possible to have the pi use slickvpn through the LAN and transmit the UK IP address out via wifi?

easiest and best way for a dummy would be great.

Any particular choice for that software? I'm using pptpd - http://www.k-noo.net/2012/07/debian-...yer-abroad/557 as raspian is Debian based that pretty much should work for you.

Loads of of guides for VPN for rpi