“Crackers Don’t Matter” is episode four of season two of Farscape.
Scorpius has left wanted beacons over the commerce planet Moya is visiting. D’Argo has recruited a scientist to make Moya undetectable, but the first trial is going to be done on Crichton’s module. Crichton is not happy. Chiana has just bought crackers on the trip for supplies.
After the initial test on the module is successful, it is necessary to make a trip to the scientist’s planet to construct the full size version. Pilot is also not happy.
On the trip to the planet, passing near some rather odd pulsars, everyone starts behaving oddly. Which was expected, and the scientist wants to use Moya for his own purposes.
At one point, Pilot says ‘I’m sorry John, I can’t do that.’ Rather similar to a line from HAL in 2001: A Space Odyssey, only John, not Dave.