lchiu7: I found the best quality to be on a PC but that isn't the best viewing experience. Second was ITV on Kodi going via HDMI to my big TV. Then the ITV app on a tablet going to the big TV over HDMI.
I didn't want to install the ITV app on my Roku because of having to reset it.
I struggled to get the ITV app on my tablet, downloaded the .apk but could get it to play