Many even wondered why Supergirl was on CBS in the first place instead of The CW.
But there was still hope on the part of the executive producers over at The CW for Supergirl to crossover with the Arrowverse, especially considering CBS co-owns The CW with Warner Bros. Television.
Then, in May it was confirmed that Supergirl would be joining The CW for its second season.
That said, it will be interesting to see the dynamic between White Canary, a cold-blooded assassin, and Supergirl, who is an extremely light-hearted character of alien origin.