If you make changes to one of the "base" modes you'll see an "*" next to it that means
it's a custom mode. You may have 2 of those and are maxing out your custom settings.
Not sure may people have that many different modes to use that's quite a few.
Sent from nowhere
You're right. There were two 'Custom*' modes, but were not ReNamed. This is different from what I was use to with my 40" that as soon anything changed with a Factory-Locked mode, it produced a 'Custom 1,2,3,etc' mode right away.
This 50" TV does not 'copy' into a Custom Mode, it maintains the original Name* until Saved or Deleted.
"That many different Modes"
Actually, my 40" TV can have up to 8 Custom modes PER INPUT! I wonder if Vizio changed that to have more firmware space now?
Sent from YesWhere