Westinghouse LTV-46w1 - Manual (Page 30)

LOCKS
29
English Lock feature prevents viewers from watching programs that are not age-appropriate, such
as programs containing violence or adult language.
The pin number is required when you want to enter Locks menu, just use the remote
control to key in your pin number. The factory default pin number is 0000.
For lock settings menu, there are four options: Rating Locks, Channel Locks, Change Pin
and RESET LOCKS.
Rating Locks
Use arrow keys on remote control to select which USA or Canada rating you want to set.