Not every spin-off is going to be successful. In fact, most spin-offs are actually very bad, but every once in a while a spin-off comes along that is so good it not only matches the glory of its parent series, but sometimes even outshines or outlasts it. With the return of the Breaking Bad prequel spin-off Better Call Sauljust around the corner (Monday, Aug. 6 at 9/8c), we at TV Guide started thinking about how the downfall of Jimmy McGill (Bob Odenkirk) ultimately fits into the discussion of the all-time great spin-offs.

There are a number of moving parts involved in creating a successful spin-off — a strong and identifiable leading character who can anchor a series is a must, obviously — but a great spin-off must also build off its parents series in a way that both advances the story and themes of the original show but also tells new and engaging stories of its own.

Better Call Saul: Yes, We Will See More Jimmy and Mike Together!

Over the course of three seasons, Better Call Saul, created by Vince Gilligan and Peter Gould, has proven time and again that it's not only capable of the same rich storytelling that made Breaking Bad one of the greatest shows in TV history, but that it's also one of the greatest tragedies ever told too. So, how does it fit in with the rest of the TV's great spin-offs? Pretty well, as it turns out. From Angel to Torchwood, these are the best spin-offs of all time.