I couldn't find much regarding Super Show IV on the Internet, so I decided to write about it and provide a download link to the shareware version of Super Show. On this page I've found a reference to SuperShow IV MultiMedia Presentation Authoring Software on a VR-ZONE cdrom. Another one is na_th_an asking to patch the shareware version EXE to remove the shareware notice on this page
Because there is no download on the 'net, you can download it here: show.zip ('right click > save as' in case it doesn't work).
Super Show is a scriptable program which can show slideshows with animations, sounds and menu's. In short: a predecessor of Microsoft PowerPoint but for DOS. It can produce this:
(video showing the introduction/capabilities of the shareware version):
It also comes with ShowPrep IV in order to create the shows: