ITV Hub (now ITVX) offers free streaming of ITV's complete catalog including exclusive originals, but it's geo-locked to the UK. A VPN with a UK server gives you instant access to ITV's drama, reality shows, and live programming from abroad. The reason for this is structural: streaming services license content country by country, and ITV Hub's catalogue in each market reflects whichever distribution deals were signed there. A title that's available on ITV Hub in the US might be on a competitor's platform in the UK, or vice versa.
A VPN sidesteps the geography problem entirely. ITV Hub sees the IP of GhostShield's exit server, not your real one, and serves you the catalogue for that exit region. The streaming app makes no distinction between a 'real' local user and a VPN-connected one as long as the traffic looks like residential broadband — which is exactly what WireGuard with ChaCha20-Poly1305 over GhostShield's network produces.
What you can't do is bend the laws of physics: a stream from ITV Hub's origin servers will always have more latency from far away. Pick the GhostShield server closest to ITV Hub's data centres in the region you want, not the one closest to you.