But from 20th of July 2020 without any announcement from EE the Windows 10 option is removed.
As I'm sure most other users are aware you can't cast your mobile BT app to your TV or PC because the app refuses unless you pay extra.
However there is a very easy workaround.
Download a small program called scrcpy to your PC, connect your phone to the PC via USB and your mobile screen will be mirrored on the PC .
This is totally legal and doesn't break any rules.
It requires you switch your phone USB debugging on.
Obviously it wasn't made just to watch BT Sports with, you can use it to run all your apps on your PC.
All the very simple instructions are at the download site https://github.com/Genymobile/scrcpy/tree/v1.9
