In an incredible coincidence, the episode "Perry", which dealt with a large solar flare affecting Clark's powers, first aired in the US on the same day that the largest solar flare in over 100 years struck the Earth, 29 October 2003.
The sheriff snaps, "And Don't call me Chief!" at Perry White. This is a reference to Perry White constantly yelling "Don't call me Chief" at Jimmy Olsen in all the other Superman television shows, cartoons, and movies.
This is the first episode of the series to directly tie Clark's abilities to yellow sunlight. It will be confirmed by Baern three years later in "Fallout".
This is the first episode of Smallville directed by Jeannot Szwarc. Szwarc is not a newcomer to the Superman universe, having previously directed Supergirl (1984).