The Secret World of Circuses and Sideshows - 1998 TV was released on:
USA: 9 March 1998
The cast of The Secret World of Circuses and Sideshows - 1998 includes: Thom Pinto as Narrator Erica Sanders as Picnic goer The Torture King as himself
Noone knows the exact number. The estimated number of circuses in Germany are about 400. But bigger countries like the USA only have about a dozen. I think that there are more than 5000 circuses around the world.
The Secret World of Superfans - 2008 was released on: USA: 2008
The Secret World of 'Antz' - 1998 TV was released on: USA: 1998
The Secret World of Dreams - 1995 was released on: USA: 12 May 1995
The Secret World of Alex Mack - 1994 The Secret 2-4 was released on: USA: 28 October 1995
The Secret World of Alex Mack - 1994 The Secret World of Ray Alvarado 2-7 was released on: USA: 18 November 1995
The Secret World - 2012 VG was released on: USA: 3 July 2012 (internet)
The Secret World of Alex Mack - 1994 was released on: USA: 8 October 1994
Tears for Fears Secret World - 2009 was released on: USA: 25 August 2009
The Secret World of Aircraft Carriers - 1999 was released on: USA: 14 June 1999
Jeremiah's Secret - 2006 was released on: USA: March 2006 (World Fest)