Channel 4 tonight, 8 pm - Britain's Stone Age Tsunami, if anyone is interested.
"New research reveals that 8000 years ago a huge tsunami swamped the east coast of Britain with waves as high as 10 metres. Tony Robinson examines what caused the event and learns more the sophisticated Mesolithic communities that inhabited Doggerland, an area of dry land the size of Germany that connected Britain to the rest of Europe"...
so says the Radio Times