There must be a reason so many of us wear jeans every day; so the history of denim is explored on a new “American Experience” (PBS, 9 p.m., check local listings) called “Riveted: The Story of Jeans.”

It’s followed by a documentary on “Independent Lens” (PBS, 10 p.m., check local listings) that looks at the racism of U.S. housing policy in the 20th century and how it led to the 2008 housing market collapse. 

A new four-part special  reviews “One Thousand Years of Slavery” (Smithsonian, 8 p.m.) around the world.

Similarly the special “Clotilda: Last American Slave Ship” (National Geographic, 10 p.m.) looks at the recent recovery of the most intact slave shipwreck.  

The two-part “Love & Hip Hop: Lineage to Legacy” (VH1, 9 p.m.) that looks at the lineage of the reality show’s cast members and ties it Black history month. 

There’s more skating and skiing during prime time on the Winter Olympics (NBC, 8 p.m.) — enough to pre-empt both late night talk shows. 

“The Cleaning Lady” (Fox, 9 p.m.) has to choose between loyalty and saving Fiona from deportation.

Margaret has an offer for Carmen on “Promise Land” (ABC, 10 p.m.). 

“9-1-1: Lone Star” (Fox, 8 p.m.) responds to a house fire where a child is missing.