Signed

The Deep

Deep Ocean: Kingdom of the Coelacanth

Deian a Loli

The Demon Headmaster

The Dengineers

Dennis & Gnasher Unleashed!

Destination X

Digging for Britain

Dim Byd i Wisgo

Dim Cwsg i Quinnell

Dinosaur

Dinosaurs: The Final Day with David Attenborough

Disappeared: Mexico’s Missing 43

Disaster at Sea: The Piper Alpha Story

Disclosure

Disease X: Hunting the Next Pandemic

DIY Deadly with Steve Backshall

DIY SOS

DNA Family Secrets

Doctor Who

Doctor Who (1963–1996)

Doctor Who (2005–2022)

Doctor Who: Dreamland

Doctor Who: The Infinite Quest

Doctor Who: Unleashed

Dodger

Dodge's Pup School

Dog Squad

Domino Day

Do We Really Need the Moon?

Down on the Farm

Do You Know Your Place?

Dragons' Den

Dreaming Whilst Black

Dreigiau Cadi

The Dumping Ground