This is from the manual for the set you list.
The answer to the off is as we all said.
I Hope this is of use.
Gary
RECORDING FREESAT PROGRAMMES
You can record a programme by connecting a VCR or DVD recorder
to the VCR SCART socket on the back of the Plaza HD•S. You will
need to choose the recorder’s SCART input for recording (see your
recorder’s manual for guidance).
You can also record a programme even when you are not at home.
Highlight the programme in the programme guide list, make a
note of its scheduled date and times, and set a reminder with the
button. Then set the recorder’s event timer to record from its
SCART input on the date and times noted.
also AUTO STANDBY
To conserve power, the Plaza HD•S will switch to standby after
three hours if no buttons are pressed on the remote control or
front panel. The Auto standby function is normally turned on, and
can be turn off by pressing the button.
SLEEP TIMER
Press to show the sleep timer menu and use the and buttons
to choose a time up to 90 minutes after which the receiver automatically
switches itself to standby. Press to confirm your choice.
AUTO TURN ON
You can set the Plaza HD•S to switch on automatically at a
particular time. Press to show the auto turn on menu and use
the or buttons to set the timer to turn the receiver on once,
every day, each week, on weekdays, weekends, or particular days
of the week. Then use the and buttons, along with the ,
and the number buttons to set the switch-on time, the channel
source (freesat TV or radio), the channel number and the sound
volume. Press to confirm.
AUTO TURN OFF
You can set the receiver to switch off automatically at a particular
time. Press to show the auto turn off menu and use the
or buttons to set the timer to turn the receiver off once, every
day, each week, on weekdays, weekends, or particular days of the
week. Then use the and buttons, along with the , and
number buttons to set the switch-off time. Press to confirm.