Set criteria for import picklist to limit choices by date

Set criteria for import picklist to limit choices by date

I need to set the criteria for the import picklist to limit my available choices to today or dates in the future.
 
In the example below (episode), I succeeded in limiting the choices to dates equal to or greater than a specific date - January 1st.
 
However, I could not limited the choices to dates equal to or greater than "today's date".