There is a setting that allows you to always show the Media column on the main Agenda Center view, rather than only when media is in the category. This provides a uniform page appearance regardless of if a category has media or not.
Important Note:
The default for each site is to only show the Media column when media is available.
Who can use this feature?
System Administrator | Owner
Instructions
Navigate to Modules > Content > Agenda Center
Select the Properties tab at the top
Scroll to the bottom of the page and select the Always Show Media Column option
Click the Save Changes button: