Is that true the all TV shows canceled in 2018?

Networks haven't announced many cancellations yet, except for ABC, which canceled its freshman sitcom "The Mayor" and "Once Upon a Time," once a ratings hit. And in March, TNT announced the cancellation of its original series "The Librarians." 

There are many more cancellations to come, especially since networks haven't announced the fate of their fall shows. 

Business Insider 'll update this list as more are announced.