Daily Best Bets

1) “B Positive” season-opener, 9:30 p.m., CBS. Lately, the world has been discovering the remarkable Annaleigh Ashford. Already a Tony-winner, she did this year’s Emmy and Tony shows; she sang in the “Wicked” concert, the “Broadway’s Back” special and the vibrant opening of CBS’ fall preview … and has been brilliant as Paula Jones in “Impeachment.” Now she’s back as Gina (shown here), the good (if daft) soul who donated a kidney to a guy she barely knew. Tonight, they adjust to post-surgery life; also, he tries a new romance and she learns about a friend’s death. Read more…

1) “Dopesick” debut, any time, Hulu. On the national level, this epidemic is massive. Each year, studies say, two million people misused opioids; in a 20-year stretch, almost a half-million died of ovedoses. Danny Strong (“Game Change,” “Recount”) has written a brilliant eight-parter that does it all. We see the big picture, as Purdue Pharma mis-represents OxyContin. We also see moving stories about composite characters, with great work from Michael Keaton, Kaitlyn Dever and Rosario Dawson (shown here), as an earnest doctor, a pain-plagued miner and an investigator. Read more…

1) “Impeachment,” 10 p.m., FX. The second half of this superb, 10-week series starts with an hour that’s simultaneously funny and tragic. Monica Lewinsky (wonderfully played by Beanie Feldstein, shown here) is suddenly detained by the FBI. She’s free to go, but advised not to. For 12 hours – some of them spent waiting for her mom – she and some bewildered FBI guys (one of them played by Colin Hanks) co-exist in a hotel room and wander a shopping mall. It’s a bizarre half-day in American political history. Read more…

1) “Roswell” season-finale, 8 and 9 p.m., CW. “This is better than a soap opera,” one character says. And longer, too. In these two hours, we get way too many heart-to-heart talks. Individually, each is written and played well; combined, this feel like Dr. Phil has invaded the sci-fi universe. The story mixes aliens with special powers and mere Earthlings without. Most aliens are good, but Mr. Jones is pure evil … and looks like good-guy Max (shown here with Liz, the brainy scientist). That stirs science talk we can’t pretend to understand. Read more…

1) “The Equalizer” season-opener, 8 p.m., CBS. After scoring big in the ratings last year, “Equalizer” has a high-octane return. A bank robbery turns lethal; then the cop who almost arrested Robyn needs her help. That comes at a tough time for Robyn (Queen Latifah): Her former CIA boss is angry; so is her daughter, who knows she’s been lying about her work. Also, her tech guy faked his death five years ago. She considers quitting … then plunges ahead in a strong hour, with a little girl (shown here) to rescue and bad guys to catch. Read more…

1) “Saturday Night Live,” 11:29 p.m., NBC. Kim Kardashian West (shown here) is someone the show usually likes to mock; now, instead, she’s the host. It will be her first time on “SNL,” but her estranged husband Kanye West has been the music guest seven times. He usually brings a visually ambitious number – as does Halsey, who tonight has her fourth turn as music guest. Read more…

1) “Nancy Drew” season-opener, 9 p.m., CW. In the early books, Nancy was 16, poking around crime scenes after school; not any more. She’s a waitress, applying to an Ivy League school. She’s learned she’s an heiress. And she confronts nastiness, human and supernatural. Tonight, a mystery begins and a nemesis returns. Those parts are so-so, but two character portions are excellent: Nancy (shown here with her friend Ace) meets an FBI profiler who may be her equal; and her friend, who proposed to Nick, anxiously awaits a response. Read more…

1) “Ghosts” debut, 9:01 and 9:30 p.m., CBS. The Thursday comedies often fit a formula: Most are from Chuck Lorre, the “Big Bang” producer; most (except “Young Sheldon”) are done in front of a studio audience. Now comes a bold step – giving the best slot to a non-Lorre show that’s filmed movie-style (no audence), awash in sight gags and special effects. Rose McIver (“iZombie”) is terrific; at first (shown here), she and her husband don’t see the ghosts in her house. Then a near-death experience changes everything; big laughs ensue. Read more…

1) “CSI: Vegas” debut, 10 p.m., CBS. Six years after “CSI” ended – and 21 years after it began – it’s back. There’s a new name, a new lab and a new set of regulars. Still, the others are also there: We see Brass in the first scenes, Grissom in the final seconds. Sidle (shown here, second from left) is busy; Hodges will be key in the weeks ahead. The newcomers are fairly interesting, with the always-great Mel Rodriguez as the chief medical examiner. They solve a case-of-the-week way too easily, leaving more time for a tangled, ongoing case. Read more…

1) “Rita Moreno: Just a Girl Who Decided to Go For It,” 9 p.m., PBS. At 5, Moreno moved with her mother from Puerto Rico to Long Island. She took dance lessons, was on Broadway at 13, signed a movie deal as a teen … and endured stereotype roles. The exception was “West Side Story”; she won an Oscar, vowed to wait for good roles … and didn’t do another movie for seven years. She survived that (and a toxic romance with Marlon Brando) and is still working at 89 (shown here). It’s a great story. Read more…