It means first time on televison. It could be something new or just a theatrical film being shown on television for the first time.
The World Pastry Cup - 2001 TV was released on: New Zealand: August 2001 (TV premiere) Australia: September 2001 (TV premiere) Canada: September 2001 (TV premiere) USA: September 2001 (TV premiere)
WrestleMania XXVI The World Television Premiere - 2010 TV is rated/received certificates of: USA:TV-PG
A Star Is Born World Premiere - 1954 TV was released on: USA: 29 September 1954
World Fashion Premiere from Paris - 1998 TV was released on: USA: 23 July 1998
Party with Spike World Premiere Special - 2003 TV was released on: USA: 16 June 2003
World Pastry Cup Sweet Rewards - 2003 TV was released on: Canada: 2003 (TV premiere) USA: 2003 (TV premiere)
Ship of Fools World Premiere Party - 1965 TV was released on: USA: 29 July 1965 (Los Angeles, California)
World Premiere 'Star Wars III Revenge of the Sith' - 2005 TV was released on: USA: 23 June 2005
The Seven Wonders of the World - 1994 was released on: UK: 1994 (TV premiere) USA: 27 June 2000 (video premiere) Finland: 9 March 2007 (DVD premiere)
Chad's World - 1998 TV was released on: USA: 20 June 1998 (TV premiere)
The World Was Ours - 2007 TV was released on: USA: 14 April 2007 (TV premiere)
One Symphony Place A World Premiere Live from Music City - 2006 TV was released on: USA: 9 September 2006