You can't have an underground radio station without Public Service Announcements - also known as "PSAs". This is where the best ones from the underground days at KMNR, or at least the ones we can still find.

—Alpha WebMonkey

[See note below.]

Groundwaves Alert (2.2 MB)
Interview With St. Pat (1.8 MB)
New Intro (The Prisoner) (0.6 MB)
Obscenity Rap (1.2 MB)
Prisoner of 2nd Ave. Promo (1.4 MB)
PSA (Communications) (0.9 MB)
PSA (Fear is the Mind Killer) (0.9 MB)
PSA (KMNR Frisbee) (1 MB)
Quit School 1 (Chicks) (0.7 MB)
Vegetarian Cart (1.4 MB)
The RBR Calls The White House (1.1 MB)

NOTE BELOW: If you're on Windows and you want to save these files to your hard drive, right-click on the title, and select Save Target As. If you're on Macintosh or Unix (or the Commodore 64, or something), you're so smart, just figure it out.