Welcome to the Quincentennial of The 3D RadioActivity! Your Uncle Marty never imagined that we would achieve 500 regular episodes, 67% of them with unique features; containing over 9100 songs, with 679 hours of programming, while not repeating a track for well over 300 adventures... That's nearly six and a half years! You won't hear something here that you have heard … [Read more...] about 500 B43D