literally not one of these suggestions worked, haha... Because I had used my old email address, Netflix DID sign in but it was prompting me to pick which service I want to sign up for since I had already used a free trial with that email address - there was no way around this menu (no Zoom, no gear icon, etc. And nothing showed up under Acct and System Info.
So it turns out the actual process is:
Press the TiVo button on the remote to access TiVo Central.
Select Find TV, Movies, & Videos.
Using the arrows on your remote, enter the following sequence:
Up, Up, Down, Down, Left, Right, Left, Right, Up, Up, Up, Up
Select Sign Out, Start Over or Deactivate.
lol!!! who the hell would have ever guessed that? Entering that in instantly brought me back to the early 90's playing Contra on sega genesis (or whatever it was) - that was always the cheat code to get infinite lives or something, haha
What a crazy process though - why not just have an icon on the start page? odd. Oh well it works now... thanks all