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In Ernie Rea's box of delights this week, you can hear from the scientist who danced with an octopus hundreds of feet below the sea, and a cameraman who sings happy birthday to beluga whales. We hear of heroes ancient and modern, from Achilles and Lawrence of Arabia to Ellen McArthur. But do you have to be a bit bonkers to be a genuine hero? The comedian Omid Djalili gives an hilarious account of one of his first stand-up gigs; and there's a touching on-air reunion between a woman who has recently lost her sight and the blind woman whom she taught in Sunday School over 60 years ago.

Book of the Week – Hopeful: The Autobiography (Radio 4, 1st to 5th Sept)
Shared Planet – Belugas (Radio 4, 1st Sept)
The Life Sub-Aquatic (Radio 4, 3rd Sept)
Penguin Post Office (Radio 4, 1st to 5th Sept)
Agree to Differ – Jerusalem (Radio 4, 3rd Sept)
Lives in a Landscape – Branscombe Chalet Owners (Radio 4, 5th Sept)
Witness - The Port Arthur Massacre (Radio 4, 2nd Sept)
The Documentary – Delivering The King's Speech (World Service, 2nd Sept)
Digitising Stalin (Radio 4, 1st Sept)
Archive on 4 – No More Heroes? (Radio 4, 6th Sept)
Tupac Shakur, Hip-Hop Immortal (Radio 4, 4th Sept)
Wordaholics (Radio 4, 3rd Sept)
The Poet Librettists (Radio 4, 6th Sept)
ÃÛÑ¿´«Ã½ Proms Plus Intro – Respighi's Roman Triptych (Radio 3, 1st Sept)
In Touch (Radio 4, 2nd Sept)