Stargate Atlantis Television Program

THE Sci Fi Channel canceled "Stargate Atlantis" this month, less than halfway through its fifth season. And indeed, the episodes have been disappointing so far, with no new plot twists to enhance the show's wormhole-jumping science fiction mythology. The big cast change -- adding "Star Trek: Voyager's" Robert Picardo as the city's new administrator -- hit with all the power of a phaser set on Blah.