Mike Hughes on TV

1) “The Lost Symbol” opener, 10 p.m.. NBC. In three Ron Howard movies, Tom Hanks played Robert Langdon, a master of ancient symbols and codes. Now this prequel has young Langdon (Ashley Zukerman, shown here) trying to save his mentor (Eddie Izzard). The nine-week first season concludes Thursday on Peacock, where you can find the other episodes. To get us in the mood, NBC shelved a rerun of “Ordinary Joe” (which returns next week) and inserted this hour, a robust blend of peril and mystery. Read more…

1) “Saturday Night Live,” 11:29 p.m., NBC. Kieran Culkin’s “SNL” debut may have gone unnoticed. He was 9 then and cast as Froggy in a sketch; his brother Macaulay, 11, hosted. Now, 30 years later, Kieran is the host, with Ed Sheeran as music guest. Once merely the brother of the “Home Alone” kid (they’re shown here with their movie parents), he did indie films, getting awards for “Igby Goes Down” (2002). As the troubled Roman in “Succession,” he’s drawn praise, an Emmy nomination … and this belated eturn to “SNL” Read more…

1) Magnum P.I.” 9 p.m., CBS. After reruns last Friday, CBS is back to new hours. That includes “S.W.A.T.” – staying here, after CBS scuttled a plan to move it to Sundays — at 8 p.m. and “Blue Bloods” at 10. And it includes this episode, with a tricky twist: People usually hire a private eye when a marriage goes bad; now a guy wants his bride-to-be (shown here, right, with Higgins) investigated before the wedding. Read more…

1) “Queen Family Singalong,” 8 p.m., ABC. Back in 1971, the band Queen formed. With Freddie Mercury as lead singer, it would blast epic anthems, from “We Are The Champions” to “We Will Rock You.” Now its 50th anniversary is being celebrated this week – Monday on “Dancing With the Stars” and again here. Adam Lambert (who often takes the late Mercury’s spot) will perform; he’s shown here. Also performing: Darren Criss, Derek Hough, Fall Out Boy, Pentatonix, JoJo Siva, JimmieAllen and two Broadway casts. Read more…

1) “Dopesick,” any time, Hulu. As the sixth (of eight) episode begins, coal country has been shattered by OxyContin. An earnest doctor (Michael Keaton) has lost his license and is in rehab; his young patient (Kaitlyn Dever) is deeply addicted. Some federal officials in Virginia face resistance from the Purdue Pharma drug company and indifference from Department of Justice leaders. It’s s stunning episode, including great work from Keaton, Dever and (as an intense drug official, shown here) Rosario Dawson. Read more…