It is available on the Now Entertainment Addon. If you login to your My BT and go to your products and go to the part your add on and when it shows the Now Entertainment Addon click on ser channels the discovery channel logo is showing.
I believe .
The Entertainment addon to your current TV package you have is for Now Entertainment membership which would comprise those channels included in Now Entertainment membership, Discovery is not a Now Entertainment channel ( if it were it would be available to all with Now membership in the Now App). Were you to flex your package to Entertainment then that package would include the now entertainment membership channels , Discovery and AMC.
Unfortunately BT currently appear only to give you Discovery if your main package is Entertainment, Big Entertainment or VIP.
@DarrenDev Could you look into this problem
@zulu17 is correct - the Discovery channel isn't part of the Now TV packages. It's part of the Entertainment, Big Entertainment, VIP, and VIP 4k packages (which also include Now TV as part of them).
I've raised an issue regarding bt.com showing incorrect information.
@DarrenDev When will the discovery plus app be available to BT Customers?
Sorry to slightly change subject but I have now seen vip4k mentioned twice. I thought there was only a vip package not a vip and a vip4k package.