Travel: Joanna Lumley’s Postcards, 8.30pm, ITV

In the penultimate episode of the series, Joanna (right) recalls her journey through China and Mongolia on board the exotic Trans-Siberian Express and her various stop-offs along the way. Highlights include walking the Great Wall of China, cruising through the streets of Beijing in a Rolls-Royce and a visit to a strange restaurant boasting a Chairman Mao cabaret. She also recalls milking horses with Mongolian nomads.