This is listerola.  
It scrolls listings fast and slow, in a multitude of colours.
It can scroll xmltv files.  http://www.xmltv.org.
It can scroll Meeting Room Booking System reports.  http://mrbs.sf.net.

Known Bugs:
0. It only scrolls up.
1. The scrolling can sometimes blip.
2. The number of pixels to scroll at a time needs to be a multiple of the scrolling window.  This information is not shown in the preferences window, and so the user can unwittingly pick bad data that messes up the look of the scrolling.
3. When the window is resized to be wider, it cannot be made less wide.
4. The arrows overlap text that describes an event.
