First time the Daily Planet building is shown.
The Luthor Mansion was bugged in the episode "Red", when Lionel came to spend some time with Lex in the mansion and moved the furniture around because of his "condition".
Maggie Sawyer is the first DC Comics character, after the pilot, and the 8th DC Comics character overall, to be adapted into the series.
Pete Ross and Chloe Sullivan do not appear in this episode. This is the first episode to not feature Chloe.
This is the first and only episode in the series that gives Martha the most screentime.