An exemplary system includes a content delivery subsystem configured to receive media content from a content provider and transmit the media content over a network to a content processing subsystem configured to process and provide the media content for presentation to an end user. The content delivery subsystem is further configured to maintain resource data associated with at least one of the media content and the content provider, make at least a subset of the resource data available to the content processing subsystem for inclusion in an end user interface, provide a content customization portal for access by the content provider, authenticate the content provider accessing the content customization portal, receive custom content from the authenticated content provider via the content customization portal, validate the custom content, and provide the custom content to the content processing subsystem for inclusion in the end user interface.