TNT is honoring the late actress Shannen Doherty with a four-day Charmed marathon, showcasing 25 classic episodes featuring her as Prue Halliwell. Doherty, who passed away at 53 after battling cancer, played a powerful witch with unique magical powers in the series. The marathon includes episodes directed by Doherty and highlights her character's sacrifices and the introduction of a new sibling. Despite controversies surrounding her exit from the show, the event pays tribute to Doherty's significant contribution to Charmed and her career. The marathon schedule spans from morning to midday, featuring iconic episodes like 'The Good, the Bad, and the Cursed.'