User blog comment:SeanWheeler/Saving The Birds of Prey Wiki/@comment-27640688-20200206182624/@comment-2054358-20200207052207

Supergirl once showed up on the Riverdale set. Riverdale happens to be a CW comic book show produced by Greg Berlanti. The only thing stopping that crossover? It was licensed by a different comic publisher. But the style with the casting credits and tone seems very consistent with the Arrowverse. For a while, I was even hoping for a DC/Archie crossover on the CW! That's why I watched it with the DC shows. When a user speculated that Zoom's prisoner in Earth-2 was Ronnie, I made a joke in my mind that he meant Veronica Lodge. Turns out it was Jay Garrick who was the prisoner.