After I installed a new ROKU device,britbox did not come up

Follow this instruction, please:

1. Press the Home home button on Roku remote on your Roku remote
2. Scroll and select Streaming Channels to open the Channel Store
3. When you want to learn more about a channel, press OK OK button on Roku remote on your remote
   to open the details. In addition to a synopsis and rating, you can preview screenshots of the channel.
4. If the channel is “free” then you can select Add Channel to install the channel on your Roku device.
5. If the channel is “paid”, then you can select Buy $X.XX in order to purchase and install the channel.
6. If you have a Roku account PIN, then you will be required to enter it. If you do not have a PIN and wish to protect against unauthorized purchases.
7. If your payment information is out-of-date, it will need to be updated in your Roku account.

Is everything clear with the provided instruction?