The movies' craziest comedy team in two of their most successful pictures.

"A Night at the Opera"
Possibly the Marx Brothers' most famous film, the plot has something to do with Otis B. Driftwood's plans to launch a Mrs Claypool as a patron of Grand Opera.

4.25 "The Big Store"
Groucho, Chico and Harpo turn their talents to sleuthing as three private eyes hired to protect a department store. But once again they leave chaos in their wake.

(Holiday Films: pages 17-18)

Royal Institution Lectures by Professor Eric Laithwaite.

The mysteries of a "Gyroscope" in "Gimbal rings" were known to Lewis Carroll, who used the words "gyre and gimble" in a Nonsense rhyme about the mythical monster. We shall re-examine gyroscopes from the point of view that their behaviour can be compared very closely to that of electromagnetic devices.

Cliff Michelmore reports on the International Boat Show at Earls Court with expert comment on sail and power from Robin Knox-Johnston and John Reed

Try a new dinghy for £300. Meet the yachtsman of the year. See the Windermere powerboat Grand Prix from the air. Shop around for the best buy in family cruisers. A hundred new boats surround the Cornish fishing village built in the pool at Earls Court. Come on board and escape to the sea in 1975.

with Michael Charlton. A topical interview with a well-known personality follows the News Summary
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Introduced by Richard Baker.
The traditional concert of music by the Strauss family, which took place this morning in the Main Hall of the Musikverein, with the Vienna Philharmonic Orchestra led and conducted by Willi Boskovsky with members of the Vienna Opera Ballets.

with Fenella Fielding and Denholm Elliott

The cat has been branded and cosseted, worshipped and cursed across the years. As an Egyptian Deity, medieval demon and modern sybarite she has constantly intrigued and mystified her admirers. She's inspired poetry and prose ranging from the sublime to the ridiculous and almost as varied as the cat herself ... Ravel, Rossini and Tchaikovsky have composed memorable cat-music, and artists from Leonardo da Vinci to Ronald Searle have sought to capture her magic. But the cat remains elusive, and will doubtless continue to defy definition for the next 2,000 years.
(Fenella Fielding is in "Absurd Person Singular" at the Vaudeville Theatre, London)

Starring Trevor Howard, Vanessa Redgrave, John Gielgud, Harry Andrews, Jill Bennett and David Hemmings

On 25 October 1854 the Light Brigade, commanded by Lord Cardigan, rode into the 'valley of death' against the full might of the Russian cannon.
Holiday Films: pages 17 and 18

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Gabriel Woolf reads "Hyssop" by Walter de la Mare