Highlights: May 6-12

Sanjay Gupta, Margaret Cho and Martha Stewart are all children of first- or second-generation immigrants and share the peculiar burdens of that heritage on “Finding Your Roots” at 7 pm Sunday.

Sherlock and Watson are plunged into a case of blackmail involving crafty dominatrix Irene Adler on “Masterpiece Mystery! Presents: Sherlock, Series II” at 8 pm Sunday and 8 pm Saturday.

Clinton: American Experience part one of two at 7 pm Tuesday explores the story of an American president who rose from a broken childhood in Arkansas to become one of the most successful politicians in modern American history and one of the most complex and conflicted characters to ever stride across the public stage.

Nature at 7 pm Wednesday tells the story of two remarkable and extremely rare white lion cubs on their journey to adulthood in South Africa’s Kruger Park in “The White Lions”.

Nova at 8 pm Wednesday looks at the science behind the April 2011 tornado outbreak, meeting those affected and the scientists trying to predict tornadoes and understand whether this outbreak relates to global climate change in “Deadliest Tornadoes”.

With jaw-dropping 3-D graphics generated by the National Center for Supercomputing Applications, Nova at 9 pm Wednesday features spectacular footage of powerful Midwestern tornadoes and gives viewers a front-row seat to the risky and thrilling art of storm chasing in “Hunt for the Supertwister”.

Austin City Limits at 10 pm Wednesday and 10 pm Friday showcases the best in modern country with Miranda Lambert and Jeff Bridges.

Historian Mark Updegrove talks about his recent book Indomitable Will: LBJ in the Presidency on Overheard with Evan Smith at 7 pm Thursday.

Arts in Context looks at what made the Trans-Pecos town of Marfa nestled near Big Bend National Park the desert destination it is today in “The Light and The Land” at 7:30 pm Thursday.

Join Chet Garner as he travels to South Padre Island for a day at the beach on “The Daytripper” at 8:30 pm Thursday.

Explore woven textiles and story quilts by artists Faith Ringgold of Harlem, Randall Darwall of Cape Cod, Consuelo Jimenez Underwood in California and Terese Agnew in Wisconsin on “Craft In America: Threads” at 9 pm Friday.

The Decemberists and Gillian Welch showcase the best in contemporary songwriting on Austin City Limits at 7 pm Saturday.