The Dead Zone

Johnny Smith is a retired schoolteacher who, as a result of a car accident, has developed psychic abilities. An encounter with a carnival trickster in the first episode (before the car accident) makes it clear Johnny already has some psychic abilities. However, after the coma, their nature changes from intuition to visions, the latter requiring urgent action, even when personally inconvenient, whereas earlier Johnny only uses his ability on a carnival trickster to amuse his fiancée Sarah. Whenever he undergoes one of his visions, Johnny has shown to be capable of manipulating the time localized around the vision, allowing him to stop, slow, reverse, or forward the time relative to himself within the vision, leaving him as the only one aware of his temporal alterations within it and thus allowing him to further examine the details from the past, future, and occasionally the present.