At Last the 1948 Show is a satirical television show made by David Frost's company, Paradine Productions (although it was not credited on the programmes), in association with Rediffusion London. Transmitted on Britain's ITV network in 1967, it brought Cambridge Footlights humour to a broader audience.

The show starred and was written by Tim Brooke-Taylor, Graham Chapman, John Cleese, and Marty Feldman. Cleese and Brooke-Taylor were also the programme editors. Aimi MacDonald (usually billed as "the lovely Aimi MacDonald") was the cheerfully ditsy host who introduced the show and also appeared in occasional (and brief) in-show linking segments, but she did not appear in sketches. The director was Ian Fordyce. Chapman and Cleese would later be among the founders of the Monty Python comedy troupe, and several of the sketches first performed in At Last the 1948 Show would later be performed by Monty Python in various formats. Cleese and Chapman's future Python partner Eric Idle appears as a bit part player in a few sketches; similarly, Brooke-Taylor's future Goodies partner Bill Oddie appears in some small roles.

While only two episodes of the show had been thought to survive, efforts to locate missing episodes have been fruitful, with seven episodes being accounted for by 2013. On 23 October 2014, two episodes were recovered by the British Film Institute from the David Frost collection, and a further two episodes were recovered the following year, making the number of complete episodes eleven out of thirteen.