Google Play has geo-restrictions in place which means some apps are only available in certain countries. This is common practice with TV movie and music streaming sites and platforms due to copy and broadcasting rights, but it can be frustrating for users.
The easiest way to bypass it is to connect to a VPN server in the location of the app you want to access – for instance, a server in the UK to access apps such as Sky Go or BBC iPlayer, or a server in the US to access Hulu or NBC. To do this, follow the instructions above.