Spinoffs are always risky, and while many have succeeded, many others failed so hard that they embarrassed fans of the original show.

Sometimes a sought-after spinoff just can't live up to the legacy of its predecessor. Orphan Black: Echoes, which aired in 2024, might just be one of the most disappointing TV series of all time ...

There have been plenty of successful TV spinoffs, but a few backdoor pilots didn't get to realize their full potential.