Cuéntame cómo pasó (transl. Tell me how it happened), usually shortened to Cuéntame and also known in English as Remember When, is a Spanish prime-time television historical drama series that originally ran on La 1 of Televisión Española for twenty-three seasons, from 13 September 2001 to 29 November 2023. It recounts the experiences of a middle-class family, the Alcántaras (Spanish: Los Alcántara), during the years of the rule of Francisco Franco, the transition to democracy, and the current democracy.Cuéntame cómo pasó has received critical acclaim throughout most of its run and has received numerous national and international awards making it the most awarded series in the history of television in Spain. With twenty-three seasons, 413 episodes and nine unnumbered special episodes it is also the longest running scripted prime-time Spanish series in the history of television. It was the most expensive Spanish series to produce for many seasons, and taking into account its total cost, it is the Spanish series that has cost the most of all time.

With a stable cast led by Imanol Arias and Ana Duato as Antonio Alcántara and Mercedes Fernández, more than three thousand performers have appeared in the series. It has also spawned foreign adaptations in Italy, Portugal, Argentina, and Greece.