Where has Once Upon A Time Gone?
Thirteenth floor cancelled.
Dracula cancelled
Penny dreadful cancelled.
Fast forward (which was a brilliant idea and well acted)
I am sure there are tons more. I now rarely bother with US series!
I think they are so keyed into making money they stretch out a good idea forever in case it's a hit and when it's not as popular as it should be they cancel. Much better idea to compress the idea into a brief series (note Sherlock) rather the this TV teasing.