When did the TV series Supergirl first air?
Supergirl (TV series)
The second season was filmed in Vancouver, rather than Los Angeles where the first season was shot. This was done to reduce the high production costs of the series, one of the issues that made CBS wary to renew the series on their network.[26] Filming for the third season began in Vancouver on July 6, 2017, and ended on April 28, 2018.[53]