Horizon Season 41 Episodes

Episode 1

The Demonic Ape

Episode 2

The Moscow Theatre Siege

Episode 3

The Atkins Diet

Episode 4

Secrets of the Star Disc

49 mins

The story of an archeological find, that changes our image of bronze-age Central Europe.

Episode 5

The Dark Secret of Hendrik Schön

Episode 6

Thalidomide: A Second Chance?

Episode 7

The Diamond Labs

Episode 8

T.Rex: Warrior or Wimp?

One theory suggests that tyrannosaurus rex, famed as a terrifying carnivore, was in fact a lumbering scavenger with bad breath.

Episode 9

Project Poltergeist

49 mins

The history of neutrino related discoveries which made scientists re-think their fundamental theories of the universe.

Episode 10

The Truth of Troy

Episode 11

The Truth About Vitamins

Episode 12

King Solomon's Tablet of Stone

Episode 13

Derek Tastes of Earwax

Imagine if every time you saw someone called Derek you got a strong taste of earwax in your mouth. It happens to James Wannerton, who runs a pub. Derek is one of his regulars. Another regular's name gives him the taste of wet nappies. For some puzzling reason, James's sense of sound and taste are intermingled. Dorothy Latham sees words as colours. Whenever she reads a black and white text, she sees each letter tinged in the shade of her own multi-coloured alphabet - even though she knows the reality of the text is black and white. Spoken words have an even stranger effect. She sees them, spelled out letter by letter, on a colourful tickertape in front of her head. Both James and Dorothy have a mysterious condition called synaesthesia, in which their senses have become linked. For years scientists dismissed it, putting it in the same category as séances and spoon-bending. But now, synaesthesia is sparking a revolution in our understanding of the human mind.

Episode 14

What Really Killed the Dinosaurs?

Many scientists believe a single meteor impact caused the sudden extinction of the dinosaurs. However, some scientists now challenge it, based upon new analyses of discoveries in the geological record and new interpretations of the data.

Episode 15

Making Millions the Easy Way

Episode 16

Saturn: Lord of the Rings

Episode 17

The Hunt for the Supertwister

Episode 18

Dr Money and the Boy with No Penis

50 mins

When a baby boy's penis is burnt off during a circumcision, his parents turn to a noted sexologist who suggests he be raised as a girl. Ultimately, it leads to serious consequences.