Sony KP-53HS30 Operating Instructions Manual page 59

Using the Menus
8 Move the joystick left or rigm [o select the extender to be viewed, and
press@
"" appears beside the selected extemtcr, indicating ttat the prograthat _nSn_atch the extender can be viewed.
lfscn[ress _ again, r_ is displayed to show that the programs that
match the cxtcndcr will be blocked again.
9 Rcpeat step 8 for othcr extenders.
All programs tl_at match the ratings you selcct amt highcr, exccpt for the
_ that_ere _ will be _
1 OPrcss MENU to exit the menu screen.
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