How to hide top banner on collection pages
Broadcast includes a setting to help remove the banner image on Collection pages.
Navigate to a collection page in the Theme Editor or use the top dropdown menu and choose Collection pages. Under the left column, choose Collection page and find the setting below under Collection Image:
When you uncheck that setting, Broadcast will remove the banner image from all collection pages:
You can also adjust the title/description position to be left/center/right aligned: