1) “Frontline: The Choice,” 9-11 p.m., PBS. Even “America’s Got Talent” finalists (shown here) can’t match the impact of the America’s-got-politics finalists. This is biography at its best, bouncing between the lives of Donald Trump and Joe Biden, and finding huge contrasts. Biden faced immense troubles, from boyhood stuttering to the death of his wife and two of his children; Trump was sent to military school, where he savored being in command. Biden made big mistakes, including plagiarism; he apologized and adjusted. Donald Trump had bankruptcies, divorces, rants and more; he admits no mistakes.
2) “America’s Got Talent,” 8-10 p.m. NBC. Here’s the final chance to gather votes. Half of the 10 finalists are singers – Roberta Battaglia, Kenadi Dodds, Cristina Rae, Daneliya Tuleshova and Archie Williams. There’s also a music duo (Broken Roots), a dance duo (BAD Salsa, shown here), an acrobatic trio (Bello Sisters), an aerialist (Alan Silva) and poet Brandon Leake. They perform and viewers vote. Those performances will rerun at 8 p.m. Wednesday, with the finale from 9-11 p.m.
3) “Cosmos: Possible Worlds” opener, 8 and 9 p.m., Fox. Science-fact gets a science-fiction feel, with Neil deGrasse Tyson stepping into the show Carl Sagan created 40 years ago. Like Sagan, Tyson is a respected scientist with TV skills; unlike him, he’s backed by modern-day visuals. These hours (which previously aired on National Geographic) sometimes sound monotone, but are stunning to watch.
4) “Dead Pixels” season-finale, 8 p.m., CW. After two years, the players finally have a chance for final victory in their videogame. That’s complicated by the sexual tension that emerged last week (rerunning at 8:30). It’s a clever episode, but packs a lot of dialog … a problem, with these British accents.
5) “Tell Me a Story,” 9 p.m., CW. A week from the finale of these three stories, things turn fierce. We see if Jordan (the terrific James Wolk) has any limit to his revenge fury. We also see Hannah try to free her brother and Kayla try to elude Nick. Two of the stories offer high-voltage action.