Earlier this year, the network picked up a modern retelling of Sherlock Holmes, starring Jonny Lee Miller as the detective, that is set to air this fall.
However, the show's similarity to the BBC's Sherlock has caused some controversy over the past few months. While speaking at the Television Critics Association's semi-annual press tour, Tassler assured reporters that the two shows are very different.
"When you have a chance to build a show around one of the greatest detectives in all of literature, you're going to jump at the opportunity," she said.
"I think their version is extraordinary. It's a wonderful show [but] there's is very different from ours," Tassler continued. "I think there's plenty of room for another Holmes in our world."
She went on to credit the inclusion of a female Dr. Watson, played by Lucy Liu, with giving the series a "very forward-looking" slant.
Benedict Cumberbatch, who plays Sherlock Holmes in the BBC's version, recently broke his silence on the upcoming CBS series, saying that he wishes them luck.