Barely scripted, often free-associative, and held together with video clips so queasy-fuzzy Shat might well have bought them on Canal Street en route to the theater, Shatner’s World is a unique end-user Broadway experience. For non-Trekkers, I’d put it somewhere between attending the Charlie Sheen Comedy Tour and getting trapped in a basement with an eccentric grandparent who has recently discovered YouTube. For the faithful—those who thrill visibly at every out-of-focus glimpse of the Gorn—Shatner’s World is much more. It is nothing less than Beowulf’s final battle, the mortal bellow of a supernovan ego in the face of Death.