I never created DC canon.
Stargirl used the Cosmic Staff to fly to Gentleman Ghost after he ran with one armful of jewelry. She paused by him prior to one smile. She started to aim the Cosmic Staff at him as he tensed. Plenty of time for her to defeat him before the Yankee Poodle Show aired.
Stargirl turned to a clock in one shop window. Her blue eyes suddenly widened slowly.
''The Yankee Poodle Show is going to start in a few minutes?''
Defeat Gentleman Ghost with blasts from the Cosmic Staff or view the episode?
''One repeat.''
Stargirl smirked. She blasted Gentleman Ghost.
THE END