Highlights July 19 to 25

Miss Marple is asked to help her old friend, who has been slowly poisoned by an unknown hand on Masterpiece Mystery! at 8 p.m. Sunday.

The History Detectives at 8 p.m. Monday take a look at Tokyo Rose recordings, Crazy Horse photo and more.

Make Em Laugh tonight at 9 p.m. Monday features “Wiseguys and Smart-Alecks” like Groucho Marx, Jack Benny, Paul Lynde, Joan Rivers, Redd Foxx and more followed by “Groundbreakers” like Lenny Bruce, Richard Pryor and George Carlin at 10 p.m.

The science behind our sense of taste and a product that may fulfill the dream of creating an artificial tree that can absorb carbon dioxide directly from the air and more on Nova ScienceNow at 8 p.m. Tuesday.

P.O.V. at 9 p.m. Tuesday features The Betrayal, the Academy Award®-nominated documentary of survival and the resilient bonds of family.

The Territory at 10:30 p.m. Tuesday showcases new directions in film and video. These films offer a provocative mix of experimental, documentary, narrative, and animated shorts that allows the audience to take TV trips around the world and to major U.S. media festivals.

Time Team America at 7 p.m. Wednesday digs for the remains of the first American town founded by freed slaves.

The ability to calculate risk has led to the creation of enormous wealth, or when calculated incorrectly, catastrophic economic fallout on Ascent of Money at 8 p.m. Wednesday.

Wide Angle at 9 p.m. Wednesday travels to East Africa to tell the dramatic, intimate story of a woman on a mission – and a world of trouble standing in her way.

Lucinda Williams followed by Old Crow Medicine Show on Austin City Limits at 10 p.m. Wednesday and 9 p.m. Friday.

Historian Douglas Brinkley discusses his work including biographies of Jack Kerouac and Rosa Parks to an analysis of Hurricane Katrina on Texas Monthly Talks at 7 p.m. Thursday.

Get tips for growing xeric aloes, agaves, and succulents and visit a succulent garden along stone beds, a courtyard pond, and Japanese-styled patio on Central Texas Gardener at noon and 4 p.m. Saturday.

Sharon Jones and the Dap-Kings burn up the stage with their modern take on classic soul and funk followed by Texas treasure Carolyn Wonderland on Austin City Limits at 7 p.m. Saturday.