Hi there Janey12,
I'm really sorry to hear that you've been experiencing issues logging in with a new account on the Netflix TiVo® app.
When you say you've done all the usual signing out etc, did you sign out of Netflix in the following way?
Help & Settings > System Info > Netflix Account Information and select 'Sign Out of Netflix Account'
As this should remove the email address and let you log in with a different one. Please let me know how this goes.
Cheers, and apologies again.
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