Heroes episode 23 ‘How To Stop An Exploding Man’ will air May 21, 2007.

Here’s the Canadian preview of the episode,
aired by Global Television:

Preview of Heroes episode 23, aired by NBC TV
with different video footage from the Canadian promo:

NBC’s official description of Heroes Episode #23

Episode 1.23 ‘How To Stop An Exploding Man’
Air Date: May 21, 2007

HEROES RISE AND FALL IN THE SHOCKING SEASON FINALE WRITTEN BY EXECUTIVE PRODUCER/CREATOR TIM KRING AND DIRECTED BY EXECUTIVE PRODUCER ALLAN ARKUSH –With Isaac’s horrible predictions all unfolding before them, the everyday people with extraordinary abilities face moments of pain and peril in Kirby Plaza with unflinching heroism, as “Heroes” first volume comes to a close — and the next surprisingly begins. Jack Coleman, TAWNY CYPRESS, Noah Gray-Cabey, Greg Grunberg, Ali Larter, Masi Oka, Hayden Panettiere, Adrian Pasdar, Sendhil Ramamurthy, Leonard Roberts and Milo Ventimiglia also star. Clea DuVall, Lisa Lackey, James Kyson Lee, Missy Peregrym, Zachary Quinto, Richard Roundtree, George Takei and Adair Tishler guest-star.

Heroes episode 22 ‘Landslide’ will air May 14, 2007.

Here’s the Canadian preview of the episode,
aired by Global Television:

Here’s the official preview of Heroes episode 22, as aired by NBC TV

NBC’s official description of Heroes Episode #22

Episode 1.22 “Landslide”
Air Date: May 14, 2007

Show Cast: Milo Ventimiglia, Ali Larter, Hayden Panettiere, Greg Grunberg, Sendhil Ramamurthy, Masi Oka, Santiago Cabrera, Leonard Roberts, Adrian Pasdar, Tawny Cypress, Noah Gray-Cabey, Omid Abtahi, Cristine Rose, Ashley Crow, Randall Bentley, Jack Coleman, Thomas

AS LINDERMAN ARRIVES, NATHAN CONSIDERS THE COST TO WIN THE ELECTION; MALCOLM MCDOWELL, ERIC ROBERTS AND GEORGE TAKEI GUEST-STAR — Poised to become a member of Congress and maybe more, Nathan (Adrian Pasdar) considers the cost to those he loves, along with his mother’s (guest star Cristine Rose) advice and Linderman’s (guest star Malcolm McDowell, “Entourage,”"A Clockwork Orange”) prophecy. As he prepares to face Sylar (guest star Zachary Quinto) to the death, Hiro (Golden Globe nominee Masi Oka) learns of his lineage from his father (guest star George Takei, “Star Trek”). While various “heroes” fatefully arrive in New York City, Peter (Milo Ventimiglia) and Ted (Matthew John Armstrong) attempt to leave the city before the foretold explosion. H.R.G. (Jack Coleman) and Matt (Greg Grunberg) learn the surprising truth behind the tracking system used on people with special abilities. Santiago Cabrera, Noah Gray-Cabey, Ali Larter, Hayden Panettiere, Sendhil Ramamurthy and Leonard Roberts also star. Clea DuVall, Justin Evans, James Kyson Lee, Missy Peregrym, Eric Roberts, Rena Sofer, Adair Tishler and Jackson Wurth guest-star.

NBC renews their 4 battleship show for full season of episodes in next season. Here’s the official press release.

BURBANK, Calif. ? January 17, 2007 ? NBC has ordered early full-season pickups for the 2007-08 season for four hit series — the comedies “The Office” and “My Name Is Earl,” and dramas “Heroes” and “Law & Order: Special Victims Unit, ” it was announced today by Kevin Reilly, President, NBC Entertainment.

“Heroes” is the #1 new series of the season in adults 18-49, total viewers and other key categories and, through 16 weeks of the season, is tied for the #3 ranking among all shows in 18-49. “Heroes” is NBC’s highest-rated first-year drama in 18-49 in 12 years, since “ER” debuted in Fall 1994. Through January 7, “Heroes” was averaging a 6.8 rating, 16 share in adults 18-49 and 15.3 million viewers overall.

From creator-executive producer Tim Kring (NBC’s “Crossing Jordan”) comes “Heroes” (Mondays, 9-10 p.m. ET) ? recently named the winner of the People’s Choice Award for Favorite New TV Drama ? is an epic drama that chronicles the lives of ordinary people who discover they possess extraordinary abilities ? and a destiny to save the world.

They include a genetics professor (Sendhil Ramamurthy, “Blind Guy Driving”) in India who is led by his father’s disappearance to uncover a secret theory ? that there are people with super powers living among us. Also featured are a young dreamer (Milo Ventimiglia, “Gilmore Girls”) tries to convince his politician brother (Adrian Pasdar, “Judging Amy”) that he can fly. A high school cheerleader (Hayden Panettiere, “Ice Princess”) learns that she is totally indestructible while trying to relate to her father (Jack Coleman, “Dynasty”) who has a keen interest in people with special abilities. A Las Vegas single mother (Ali Larter, “Final Destination”) struggles to make ends meet to support her young son (Noah Gray-Cabey, “My Wife & Kids”) and discovers that her mirror image has a secret.

In addition, a fugitive from justice (Leonard Roberts, “Buffy the Vampire Slayer”) continues to baffle authorities. A gifted artist (Santiago Cabrera, “Empire”), whose drug addiction is destroying his life and relationship with his girlfriend (Tawny Cypress, “Third Watch”), can paint the future. A down-on-his-luck Los Angeles beat cop (Greg Grunberg, “Alias”) can hear people’s thoughts, which puts him on the trail of an elusive serial killer. In Japan, a young man (Masi Oka, NBC’s “Scrubs”) develops a way to stop time through sheer will power.

Joining Kring as executive producer are Dennis Hammer (NBC’s “Crossing Jordan”) and Allan Arkush (NBC’s “Crossing Jordan”). The drama is produced by NBC Universal Television Studio.