'Orphan Black': Cosima's, played by Tatiana Maslany, condition worsens on the penultimate episode of the season. (Steve Wilkie for BBC AMERICA/Steve Wilkie for BBC AMERICA)

The one-hour documentary “Star-Spangled Story: A Battle for America” (Smithsonian at 9 p.m.) travels back to 1814 and to Francis Scott Key writing the national anthem, which turns 200 this year, and the events that inspired him.

Cosima’s condition worsens while Sarah faces tragic consequences, and Alison and Donnie have a run-in with the law on the penultimate episode of “Orphan Black” (BBC America at 9).

Sunday talk shows: “Platts Energy Week” (WUSA at 8 a.m.) interviews the Environmental Protection Agency’s Janet McCabe; “BioCentury This Week” (WUSA at 8:30) features National Organization for Rare Disorders’ Diane Dorman; “Fox News Sunday” (Fox at 9) hosts Rep. Greg Walden (R-Ore.); “White House Chronicle” (WETA at 9) has the American Nuclear Society’s Michaele Brady Raap; “State of the Union” (CNN at 9) features Rep. Eric Cantor (R-Va.).

“Government Matters” (WJLA at 9:30) hosts the Government Accountability Office’s Nicole Clowers; “This Week” (ABC at 10) features Cantor; “Newsmakers” (C-SPAN at 10) talks to Rep. Xavier Becerra (D-Calif.); “Sunday Morning Futures With Maria Bartiromo” (Fox News Channel at 10) hosts Rep. Howard P. “Buck” McKeon (R-Calif.); “This Is America & the World” (WETA at 10 and WHUT at 6 p.m.) talks to the Chicago Tribune’s Clarence Page; “Meet the Press” (NBC at 10:30) has 2012 Republican presidential nominee Mitt Romney (R-Mass.); “Face the Nation” (CBS at 10:30) talks to Sen. Lindsey O. Graham (R-S.C.) and Republican National Committee chairman Reince Priebus.

Sunday night, “Shark Girl” (Smithsonian Channel at 8 p.m.) profiles Madison Stewart, a 20-year-old who has a passion to protect the creatures most people fear: sharks.

Presented as a follow-up to last year’s special, the two-hour “Inside Combat Rescue: The Last Stand” (National Geographic at 9) follows U.S. Air Force personnel stationed at Bagram Airfield in Afghanistan, including the “Reapers,” who are tasked with capturing or killing Taliban targets.

Forty-one individuals (including former first lady Barbara Bush and presidents Barack Obama, Bill Clinton and George W. Bush) remark on the legacy of George H.W. Bush, the 41st president of the United States, on “41 on 41” (CNN at 9).

FINALE WATCH: “Game of Thrones” (HBO at 9) concludes Season 4 with an episode titled “The Children,” and it looks like there’s a new player from north of the Wall.

Rachel Lubitz