External input blocking, Parental control / ratings – LG 19LE5300 User Manual

22LE5300, 26LE5300, 22LE5500, 26LE5500, 32LE5300, 37LE5300, 42LE5300, 47LE5300, 55LE5300, 42LE7300, 47LE7300, 55LE7300, 32LD420, 42LD420, 47LD420, 32LD450, 37LD450, 42LD450, 47LD450, 37LD450C, 42LD450C, 47LD450C, 32LD520, 42LD520, 47LD520, 55LD520, 55LD520C, 42LD630, 47LD630, 55LD630