This page will help you if you are having trouble hiding titles in Panel pages. This is usually needed when the front page utilizing a panel full of Views, and Panel details are cluttering up the display.

There are two ways to set up Panels while only one method allows you to hide titles.

1) Panel as a Content Type, and thus the Panel is created as a node.
This will not hide the title. The Panel is a Node and Nodes must have titles, this is a Drupal feature.
(Changes in template files and css would be the only way to make changes for this method).

2) Panel created as a Panel Page in example.com/admin/structure/panels
Choose "no title". Done.
(It's not technically a node, though to all intents and non-programming purposes it acts like one, it can therefore be used to hide the title displayed).

Fixing existing (titled) Panels

You have to delete your existing Panel nodes and rebuild them as Panel pages.