The usual suspects will all feature, including Sherlock, Columbo, Morse, Poirot and Marple. There should be some fond memories and fun moments, such as Pierce Brosnan and Bruce Willis sleuthing debuts in Remington Steele and Moonlighting.
And of course the format demands plenty of talking heads chipping in – Lynda La Plante, Phil Davis, Una Stubbs, Felicity Kendall and Alan Davies included. So line up the Easter eggs on the sofa and get ready for the usual outrageous results.
My money's on Rosemary & Thyme. Classic.