20. FAV: Display favorite channel list you set before.
21. NUMERIC KEY (0~9): Enter a TV/radio channel number or menu option
number
22. PAGE-/PAGE+: Page up/down on menu or channel list.
23. MEDIA: Access to the USB menu.
24. SAT: Show the scanned satellite list.
25. SUB: Display the subtitle language list.
26. TV/RAD: Switch between TV and RADIO.
27. FIND: Quickly find channels which you want.
28. V-FORMAT: Set the screen mode.
29. TXT: Display the teletext.
30. AUDIO: Display the audio list