Katie Couric investigates the concept of political correctness.

Katie Couric explores gender equality in the United States, asking whether Americans have arrived at a turning point.

Katie Couric examines the argument that anxiety among the white working class is fueling the political and cultural divide in the United States.

Katie Couric explores the many ways that technology upends people's lives.

Katie Couric learns about the pressures and opportunities for Muslim Americans.

Katie Couric explores the divisive issue of Confederate monuments.

HBO adds to its staple of late-night talk/comedy series with this entry starring Wyatt Cenac. The comic/writer explores a wide range of social and cultural issues facing Americans, using satire to tackle tough topics and investigate real-world solutions. Each episode features documentary-style field reports as its focal point. The segments allow Cenac to travel to suburban, downtown and rural parts of the country, where he talks with locals about systematic problems and offers comedic solutions to everyday inconveniences. In addition, the host engages an in-studio audience with commentary on current events. Cenac is a former writer and correspondent on "The Daily Show With Jon Stewart," where he earned three Emmy Awards.

E! is known for entertainment-centric shows, but "E! Investigates" goes beyond the entertainment industry and dives headfirst into serious topics. Among the topics that have been covered in detail are homicidal husbands, teen suicide and kidnappings.

Presidential elections in America always garner a lot of media coverage, but the 2016 campaign is bringing new meaning to the phrase "media circus" thanks to the presence of media-friendly Republican hopeful Donald Trump. The campaign really builds up steam as the calendar flips from 2015 to 2016, which is when this real-time docuseries begins its look at the campaigns of Trump, Democratic hopeful Hillary Clinton and others vying for a chance to spend at least four years in the White House. The series follows key characters and stories from the campaigns, providing behind-the-scenes access into a world the public rarely sees in its weekly half-hour episodes. Executive producers of "The Circus" include political analysts/authors Mark Halperin and John Heilemann ("Game Change").

Veteran broadcaster David Attenborough presents a wildlife series focusing on the natural history of Singapore. Once covered in lush, tropical rainforests, the island city-state has seen increased urbanization across its 63 islands which have pushed the wildlife to adaptation or retreat to the remaining nature reserves. Viewers follow the meditative voice of Attenborough's narration as they witness fascinating creatures such as the flying colugo or the endangered pangolin surviving in the remaining nature preserves. From feisty pistol shrimp along the shores to cat-like civets on the rooftops of city buildings, Singapore is teeming with wildlife hotspots ready to be explored.