Jed Stone was last seen on 'Coronation Street' in 1966. He first appeared on the prime-time British soap opera in 1961 when he became Minnie Caldwell's lodger in Weathersfield. His nickname at the time was Sunny Jim. (The way Jed left the show in 1966 was due to his arrest for possession of stolen goods. In this case, blankets.)
Jed Stone was played by Kenneth Cope back then, and now - 42 years later - he'll be returning to ITV and 'Coronation Street'.
Jed Stone, played by actor Kenneth Cope, has returned to the ITV soap 42 years after he last appeared in the show. Now 77 (both the actor and the character, I'm assuming.), Jed Stone will be involved in a plot with Tony Gordon, a property developer in Weathersfield.
That 42 years between his appearances in Toobworld could very well be the longest span for a TV character in any show. The only other good example I can think of would be that of Alan Brady. Not counting that animated special, which belongs in the Tooniverse anyway, there were 29 years between his last appearance on 'The Dick Van Dyke Show' (which, as with Jed Stone, was in 1966) and his guest shot on an episode of 'Mad About You' in 1995. (Which, by the way, helped to get Alan Brady inducted into the TV Crossover Hall of Fame.)