Highlights 9/28 to 10/4

“Nature” at 7 p.m. Sunday examines the evolution of dogs and their infiltration in to human society in the part one showing of “Dogs that Changed the World.”

Scrappy orphan Sally Lockhart faces deadly villains as she uncovers the truth of her father’s death in “Masterpiece Theatre” at 8 p.m. Sunday.

Seemingly unconnected events set young sleuth Sally Lockhart on the trail of an evil mystery in “Masterpiece Mystery!” at 9:30 p.m. Sunday.

“American Experience” at 8 p.m. Monday follows Ronald Reagan’s controversial presidency after rising from Hollywood to the Whitehouse.

“Nova” at 7 p.m. Tuesday details the missteps that made the U.S. lose to the Soviets in the first round of the space race.

The struggles of four critically ill Americans showcase the nation’s growing health care crisis on “P.O.V.” “Critical Condition” at 8 p.m. Tuesday.

“RX for Change” at 9:30 p.m. Tuesday explores health issues set against the healthcare platforms of the two presidential candidates.

Mevlana Jalaluddin Rumi’s life and legacy is celebrated, featuring Suri music and popular poetry, in “Rumi Returning” at 10 p.m. Tuesday.

“Secrets of the Dead” at 7 p.m. Wednesday investigates shocking evidence from the Hawley Crippen murder in 1910 in “Executed in Error.”

“American Masters” at 8 p.m. Wednesday explores the life and career of the man who single-handedly influenced the direction of contemporary music in “Atlantic Records: The House that Ahmet Built.”

Filmmaker Joanna Rudnick faces her deepest fears when she tests positive for the breast cancer gene in “P.O.V.” at 10 p.m. Wednesday.

“Texas Monthly Talks” at 7 p.m. Thursday features an interview with Matthew McConaughey.

“Docubloggers” at 7:30 p.m. Thursday pays tribute to the men and women fighting overseas, and those that have fallen in the line of duty.

Gwen Ifill moderates the Vice Presidential Debate, focusing on domestic and foreign policy at Washington University in “PBS Newshour Debates 2008: Special Report” at 8 p.m. Thursday.

“American Masters” at 10 p.m. Friday examines the life and career of the Mexican muralist, who had a profound impact on American Artists, in “Orozco: Man of Fire.”

“Austin City Limits” at 11 p.m. Friday presents performances from San Francisco’s Hardly Strictly Bluegrass Festival in Golden Gate Park.

Influential superstars R.E.M. take the stage in support of their latest acclaimed record, Accelerate, in “Austin City Limits” at 7 p.m. Saturday.