“Idol Gives Back” (8 p.m., Fox): “American Idol” brings out Miley Cyrus, Eli

“Idol Gives Back” (8 p.m., Fox): “American Idol” brings out Miley Cyrus, Eli Manning, Snoop Dogg and Bono to raise money for U.S. and international charities.

“Beauty and the Geek” (8 p.m., The CW): The geeks go daytime with a visit to the set of “The Young & The Restless.”

“Rock Solid” (9:30 p.m., DIY): As the fourth season begins, comedic cousins get serious about masonry projects.

“The Greatest Silence: Rape in the Congo” (10 p.m., HBO): During the past decade in the Democratic Republic of Congo, hundreds of thousands of women and girls have been sexually attacked and mutilated in this African nation’s civil war. The attackers — who often are gangs of armed militia — typically go unpunished as they leave their victims traumatized, shunned by society, and suffering lifelong injury. In her film, “The Greatest Silence: Rape in the Congo,” Lisa F. Jackson journeys to this country’s war zones to find survivors, young and old, who will break that silence. Traveling alone, she also interviews local law enforcement officials, U.N. peacekeepers and confessed rapists. She visits the Panzi Hospital, which specializes in treating the hundreds of victims who flock there. These atrocities have a special relevance to Jackson, who was gang-raped at 25 in Washington by three men who were never apprehended. Her film won a special jury prize at this year’s Sundance Film Festival.

“Secret Talents of the Stars” (10 p.m., CBS): For the viewer who believes there just aren’t enough reality shows stuffed with desperate celebrities, we offer “Secret Talents of the Stars.” It has 16 participants showing off another side of themselves. Tonight, country singer Clint Black performs standup comedy and figure skater Sasha Cohen makes like a contortionist.