Smallville and Supernatural were the biggest shows on the air on The CW, so why the hell did the shows never crossover?
At the start of the 21st century, Superman returned to television in the form of the hit prequel series Smallville. "No flights, no tights" was the rule early on as a young Clark Kent (Tom Welling ...
The Smallville TV show and the Arrowverse cross over as Tom Welling's Superman and Grant Gustin's The Flash join forces ...