DirecTV HDTV - Manual (Page 74)

System Options and Preferences
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SETTING THE TIME AND DATE
You can set the current time and day, the current date, the time zone,
and whether or not you observe daylight saving time.
Indicate the settings for your area.
Use the arrow buttons to move around the menu screen, OK to select
an item, and the digit buttons on your remote control to enter numbers.
If you have already acquired a digital signal, the time was
automatically set and you cannot reset it.
USING THE PREFERENCES MENU
The Preferences menu allows you to change some aspects of your TV to
fit your personal preference. The following sections outline what you
can do in this menu.
COLOR SCHEME
You can change the color that appears in the menu and guides. To
change the color, select Preferences from the main menu and select
Color Scheme.
Use the up and down arrows and OK button to select the menu
color scheme you prefer.