Hello ITVX! We’re currently upgrading the ITV Hub app to our brand new ITVX experience across smart TVs, mobile apps and browsers. If you’ve purchased an ITVX Premium subscription, you may have to wait for certain platforms to upgrade to ITVX before you can watch all the Premium content (eg BritBox). The full ITVX experience, including all …
https://support.itv.com/en_us/goodbye-itv-hub-hello-itvx-rkNpVLbSi