Ok, now that this works, you can create a Timed Event.
Create two timed events that're based on day of week.
Call them Display On, and Display Off, for example.
Select all days of the week,
For the time, use 24 hour time: (23:00, for 11pm, 05:00 for 5am)
And then be sure to select the Advanced Wizard.
For the device on the left, Select your Media Director.
For the command on the right, select On, or Off as appropriate.
So in the end, you'll have two events.
One of them with an On command at the time you want the display to turn on
One of them with an Off command at the time you want the display to turn off.