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VEGAS IN the Fifties: the impossibly cool Rat Pack of Frank Sinatra, Peter Lawford, Sammy Davis, Joey Bishop and, of course, Dean Martin (left). Think cocktails, supper clubs, sharp suits and the louche quintet presiding over the debauchery at Sands Casino. But the past is not always as it seems. This week's Omnibus reveals that Dean Martin, whose quips include "you're not drunk if you can lie on the floor without holding on", really preferred apple juice. (Heavy drinking did, in fairness, come later.) The suave crooner made about 50 films but perhaps his greatest legacy was his remorseless ability to laugh at himself - before others got there first.

`Omnibus: Dino' is shown on BBC1 tomorrow at 10.45pm.