Toshiba 20RTH - Manual (Page 14)

5. Size
Press the up(▲) / down(▼) button to select the Size.
Press the (▶) or ENTER button and then up(▲)/down(▼) button to select the desired Size.
Press the MENU button to save.
6. NR
Press the up(▲) / down(▼) button to select the NR.
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