Hitachi VTUX6430A - Manual (Page 33)

5 Use the number buttons to select the number of the channel you want to add or erase.
6 Press the STOP button to delete the channel, or press the PLAY button to add it.
7 Press the GUIDE button to return to regular viewing.
Auto blue setting
1 Turn on the TV and select the video channel (3 or 4).
Or, if you are hooked up with an audio/video cable, set the TV to AUX or VIDEO.
2 Press the GUIDE button.
The main on-screen menu will appear on the TV screen.
3 Press the cursor button to select "SETUP, and then press the ENTER button.
4 Press the cursor button to select AUTO BLUE "ON" or "OFF".