Comedian David Walliams is pressing ahead with his attempt to swim the full length of the Thames despite news that half a million cubic metres of sewage has entered the river in the past wee

Comedian David Walliams’ hero status was further cemented today as he helped a pet Labrador while continuing his brave attempt to swim the length of the Thames.

The Monty Python team is compiling a new six-part series of old clips and new material.