Three hours seems an awful long time for a pop music bio-pic but the new “Salt-N-Pepa” (Lifetime, 8 p.m.) is buoyed by the music from the hip hop team, the spirited performances from GG Townson and Lalia Odom as Cheryl “Salt” James and Sandra “Pepa” Denton respectively. And there are oddball facts about their rise, if true, including the notion that Salt, Pepa, Hurby “Luv Bug” Azor, Kid-N-Play and Martin Lawrence all worked in the same Sears call center. 

It’s followed by an interview with the real life duo in the hour-long special “Let’s Talk About Salt-N-Pepa” (Lifetime, 11 p.m.). Here’s an interview I did with their DJ Spinderella in 2016 for The Washington Post, and a review or two I did of Salt-N-Pepa shows that date back nearly 30 years.

The latest six-part wildlife series for BBC America, “A Wild Year on Earth” (BBC America, 8 p.m.), is narrated by Laura Carmichael — Lady Edith Crawley on “Downton Abbey.” 

Ken Burns and Doris Kearns Johnson join Anderson Cooper in discussing our current times in “Making History” (CNN, 11 p.m.). 

David Oyelowo, Storm Reid and Byron Mann star in the sci-fi thriller “Don’t Let Go” (HBO, 8 p.m.), making its premium cable debut. 

An average guy is mistaken for a millionaire by the concierge in the new romance “A Winter Getaway” (Hallmark, 9 p.m.).  Brooks Darnell and Nazneen Contractor star.