Documenting ‘Edge’ of skiing

You don’t have to love skiing to enjoy the sports documentary “The Edge of Never” (8 p.m., Showtime).

Shot in high definition, “Edge” looks at the rarified subculture of extreme skiing.

The film focuses on the legend of skier Trevor Petersen, killed in 1996 in Chamonix, France, the world epicenter of the sport.

Nine years later, his baby-faced son Kye, 15, attempts to ski in his father’s footsteps, aided by Trevor’s friends and mentors, including Anselme Baud, considered the godfather of the alpine world.

•Talent including Wyclef Jean, Ne-Yo, Chris Brown, Ludacris and Mary J. Blige assembles for “SOS Saving Ourselves – Help for Haiti” (5 p.m., BET; 8 p.m., MTV).

Other highlights

Ned’s haunting requires a Ouija intervention on “Ghost Whisperer” (8 p.m., CBS, TV-PG,V).

A face in the crowd calls out to Allison on “Medium” (9 p.m., CBS, TV-14).

Chef Ramsay inspires jaded chefs on “Kitchen Nightmares” (9 p.m., Fox, TV-14,V).

A new take on the umbrella has the experts talking on “Shark Tank” (9 p.m., ABC, TV-PG).

Hot rocks go missing during a posh awards ceremony on “Numb3rs” (10 p.m., CBS, TV-14).

Zoe’s past complicates life for Graystone on “Caprica” (10 p.m., Syfy).

Late night

Bill Maher and Gretchen Bleiler on “The Jay Leno Show” (10 p.m., NBC, TV-14) … Jack Hanna, Joe Wong and The Swell Season appear on “Late Show with David Letterman” (11:35 p.m., CBS) … Ozzy Osbourne and Barry Manilow appear on “Jimmy Kimmel Live” (12:05 a.m., ABC).