Audiovox FLO TV AVXMMF1 Owner's Manual page 15

Notes
Unrated content (NR) does not have a rating exposed
o
in the user interface, and the rating string value will
be blank when this occurs.
FLO TV blocks or allows unrated programs based on
o
whether the unrated program is allowed to play with
Parental Controls enabled.
Specific programs identified as most restrictive must
o
challenge the user to enter the PIN, even if parental
controls are turned on at the least restrictive level.
Specific programs identified as least restrictive must
o
NOT challenge the user to enter the PIN, even if
parental controls are turned on at the most restrictive
setting.
If the correct PIN is entered, the restrictive content
o
can be displayed.
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