Has the whiff of a devastating TV writers strike killed a planned Heroes spin-off? That's the speculation after NBC pulled the plug on Heroes: Origins. TV Guide quotes an anonymous "insider": "Looking at everything in context of the strike, we're evaluating all of our production commitments. Scripts haven't been written yet." Origins was supposed to run for six episodes and run in the place of Heroes repeats this spring. If the strike is prevented, NBC might put the plug back in, TV Guide says.