AOC L26W898 - Manual (Page 31)

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Channel Block: To block channels. Use ▲▼ to select the channel you want to block, and then
press ENTER to block or unblock it. This function is only enabled in TV source.
Program Block: To set TV and Movie Ratings.
Rating Enable: Choose “On” to enable the below settings.
U.S. TV Ratings: To adjust TV blocking level in the US. You can select between TV-Y,
TV-Y7, TV-G, TV-PG, TV-14, or TV-MA.