AMERICA'S GOT TALENT's Two-Hour Season Finale Set for 9/18

NBC has announced that "America's Got Talent," summer's No. 1 show in the 18-49 demo, will end its current season on Wednesday, Sept. 18 from 9-11 p.m. ET/PT.

"American Ninja Warrior" and "Siberia" will finish their respective current seasons on Monday, Sept. 16 with one-hour episodes.

Currently in its eighth season, "America's Got Talent" is averaging a 3.3 rating, 10 share in adults 18-49 and 12.2 million viewers overall with its Tuesday edition, making it the #1 summer series in the key 18-49 demo. "Talent" has also been the #1 summer unscripted series in total viewers for each of its eight cycles to date. Every original telecast of "Talent" so far this summer has out-rated all entertainment competition in the time period on ABC, CBS, NBC and FOX in adults 18-49.

The live season finale, in which a champion will be named, is set to air from Radio City Music Hall in New York. Howard Stern, Howie Mandel, Heidi Klum and Mel B serve as judges with Nick Cannon as host.

"America's Got Talent" is produced by Simon Cowell's Syco Television and FremantleMedia North America. Simon Cowell, Jason Raff, Sam Donnelly, Trish Kinane and Rob Wade are the executive producers.

Photo by: Andrew Eccles/NBC