Gardeners’ World

(BBC2, 8.30pm)

NEW series. With the arrival of spring, Monty Don reflects on how Longmeadow has fared during an extraordinarily wet winter and gets going on a few essential tasks to get the garden into gear for the seasons to come. With the popularity of houseplants gaining huge momentum, Frances Tophill visits RHS Wisley to find out how to care for the myriad different types of indoor plants now available to gardeners. Plus, a visit to an enthusiast who has a passion for plants in pots and curates a display of more than 1000 in her garden.

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Super Powered Eagles

(BBC2, 9pm)

EAGLES are the most powerful birds in the sky, capable of tackling enormous prey, spotting food at vast distances and soaring for miles on the wing. Armed with cutting-edge filming technology, this documentary examines the science behind such extraordinary abilities. Featuring dramatic stories and some remarkable experiments, the film follows the story of a family of bald eagles in Iowa as two chicks face the challenges of life in the wild. Plus, bird specialist Lloyd Buck puts his trained golden eagle Tilly’s skills to the test.

Thou Shalt Not Kill

The National:

(More4, 9pm)

THE second series of the haunting Italian drama begins. Valeria Ferro (Miriam Leone), the brilliantly intuitive head of the homicide unit in Turin, has a new romantic interest, but she is still coming to terms with the knowledge that Mario Ferro was not her biological father. And now her mother Lucia has also disappeared. Amid this personal drama, a woman is found, strangled. The deceased, Susanna Bianco, had fled to a domestic violence shelter and her husband, Tomas Novak, is the chief suspect, especially as he was involved in an accident near the scene around the time of the murder. The full first series is available on All4.