Catalyst season 1 finale: Spiders and silk

“Catalyst” concludes season 1 with a look back at how spiders could help us strengthen fabrics and materials we use in everyday life.

In this segment:

Dr. Brian Cherry,
Dr. Jeffrey Yarker

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'Victoria' Season 3: A fearless monarch faces down crisis

Victoria Season 3 on Masterpiece begins Sunday Jan. 13 at 8 p.m.

It is 1848, and revolution is breaking out across Europe. In Britain, one woman stands between order and chaos. Sundays at 8 p.m., beginning Jan. 13.

New 'American Experience' stories feature Everglades, Sealab and more

Television’s most-watched history series, "American Experience," returns to Arizona PBS Tuesday nights this winter.

Relive the iconic royal wedding of Queen Victoria & Prince Albert

Enjoy a re-creation of the wedding that changed British matrimonial ceremonies forever, in this two-part program airing Jan. 13 and Jan. 20 at 9 p.m.