Nickelodeon goes back to the future

As families gather for Thanksgiving, Nickelodeon offers a silly treat with intergenerational appeal. Former “Kenan & Kel” stars Kel Mitchell and Kenan Thompson return to Nick for a repeat match on a special episode of “Double Dare” (8 p.m., TV-G).

Actress and digital star Liza Koshy serves as host, with original host Marc Summers along for color commentary. Look for Lori Beth Denberg (“All That”) as well.

Aimed at kids, the green slime-centric obstacle course game show has been around long enough to have entertained many of today’s parents. “Double Dare” premiered on Oct. 6, 1986. Summers hosted the series’ original run until it went off the air in 1993. At the time, it was one of the most popular original daily programs on cable television.

› Proof that not every bird is a butterball arrives on “NOVA” (9 p.m., PBS, check local listings). If asked to bet on the world’s fastest animal, many might suggest some swift jungle cat. But the prize goes to the peregrine falcon, capable of diving at nearly 200 mph — nearly three times the speed of a sprinting cheetah.

“NOVA” explores how the falcon was driven to near extinction by the use of the DDT pesticide, but has since flourished on every continent. It seems equally at home in the wild and perched atop urban skyscrapers. We follow three native Chicago falcons from birth (or rather hatching) as they take their first awkward adolescent flights and eventually learn the skills that make them some of the world’s best hunters.

› “Mysteries at the Museum” (9 p.m., Travel, TV-PG) travels to Dallas to recall the assassination of President John F. Kennedy, 55 years ago tomorrow. Host Don Wildman pours over files in hopes of finding any new evidence or information pertaining to one of the most investigated and obsessedabout murders of the 20th century.

TONIGHT’S HOLIDAY HIGHLIGHTS

› The gang breaks bread at Charlie Brown’s ping-pong table on the 1973 special “A Charlie

Brown Thanksgiving” (8 p.m., ABC, TV-G).

› Facing the holidays for the first time without the grandmother who passed down her traditions, a woman finds a special someone in the 2018 romance “Reunited at Christmas” (8 p.m., Hallmark, TV-G).

› An overscheduled San Francisco executive inherits a cozy hotel in Alaska in the 2018 fantasy “My Christmas Inn” (8 p.m., Lifetime, TV-PG). Otherwise known as “Lifetime Tries to Out-Hallmark Hallmark.”

› “A Saturday Night Live Thanksgiving” (9

p.m., NBC, TV-14) presents original sketches as well as vintage clips.

› A struggling flower shop owner falls for a rival florist in the 2018 holiday romance “A Christmas Arrangement” (10:03 p.m., Lifetime, TV-14).

OTHER HIGHLIGHTS

› Anticipate the big day with FYI’s “Duck Dynasty” (6 p.m. to 5 a.m. Thursday, TV-PG) marathon.

› Jane Lynch hosts the premiere of “Hollywood Game Night” (8 p.m., NBC, TV-14).

Contact Kevin McDonough at kevin .tvguy@gmail.com.