A little guide for non-UK residents.
Go to https://www.itv.com/ an register a free account using a UK postal code (e.g. LS1 1JF). verify your e-mail address and you'll be able to access ITVX. That will allow you to see at least the live streaming of the show, I don't know if the full show will be behind the premium wall account or not.
Be aware that, on top of this, you'll need a VPN to pretend to be in UK.
Go to https://www.itv.com/ an register a free account using a UK postal code (e.g. LS1 1JF). verify your e-mail address and you'll be able to access ITVX. That will allow you to see at least the live streaming of the show, I don't know if the full show will be behind the premium wall account or not.
Be aware that, on top of this, you'll need a VPN to pretend to be in UK.