Yes. You need to sign in your TV box as well.
The instructions to do this are here:
https://www.bbc.co.uk/iplayer/help/questions/signing-in/sign-in-tv
Once you are signed in the information is retained until the next app update, so you won't have to keep doing it.
Virgin BB TV Landline. Freeview/Freesat HD, Virgin Mobile, Tesco Mobile. Cable customer since 1993
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