This article describes how to create a pagelet for the PeopleSoft portal home page that contains an embedded YouTube video. It will even allow you to switch the video based on the language the user is logged in.
Since PeopleTools 8.55 the default interface for PeopleSoft applications is the Fluid interface. While this is very convenient for self service functionality, not all back office functionality is available in Fluid.
This article describes how to revert to the classic interface.