9 p.m. on AMC BBCA IFC SUN Planet Earth: Dynasties
Celebrated naturalist David Attenborough hosts this new five-part co-production, which also premieres tonight across BBC America’s corporate siblings AMC, IFC and Sundance TV. The miniseries examines five of the world’s most endangered species as they struggle to survive. Tonight’s opener focuses on one of the most famous lion prides in Africa: the Marsh Pride of Kenya’s Masai Mara. As their saga begins, all the adult male have abandoned the pride, leaving just two adult females to feed and protect eight youngsters.