BBC Four Tomorrow

Winterwatch 1963: The Big Freeze (one‑off) – Chris Packham presents a BBC archive documentary that revisits the harshest British winter of the 20th century, revealing how the extreme cold reshaped the country's wildlife.

Loughborough to Braunston - Robbie Cumming battles icy conditions on the Grand Union Canal before arriving in Braunston, the revered heart of narrowboat culture.

The Secret Rules of Modern Living: Algorithms (one-off) – Mathematician Marcus du Sautoy demystifies the hidden world of algorithms that silently drive everything from search engines to sat‑navs, revealing how they shape everyday life.

Scottish National Gallery – Artist Lachlan Goudie explores the museum’s collection, revealing how its artworks speak to contemporary challenges of family, community, nature and hope.

The Forgotten Battlefield – Amateur archaeologists conduct the largest‑ever dig at the World War One battlefield of Ypres, Belgium, unearthing an astonishing array of artefacts in a compelling BBC Four HD documentary.

Anthony Hopkins: Talking Pictures – A BBC Four HD documentary that looks back on the Oscar‑winning actor’s career through insightful BBC interviews, where Hopkins discusses his unique approach to acting and reflects on his most celebrated roles.

The Remains of the Day – A restrained period drama starring Anthony Hopkins and Emma Thompson, in which a devoted butler suppresses his mutual love for the housekeeper to remain loyal to his master, while their quiet yearning unfolds against a meticulously rendered English estate.

Letter to Brezhnev – A witty comedy‑drama that follows two Soviet sailors as they spend a night on the streets of Liverpool, starring Peter Firth and Alfred Molina.