Oh! I HAVE seen Victoria Stilwell rehabilitate dogs that are every bit as aggressive or more so, as the dogs Cesar handles. The many well known, highly respected trainers and behaviorists, many of whom are authors of some very popular and renowned books also train dogs every bit or more aggressive as the dogs Cesar has on his shows. I, myself have worked with some very aggressive dogs.
The behavior issues he has on his shows are not unique or special. It is, like you say, T.V. And it's all sensationalized to make him out to be some super star. In the dog training world, he is NOT.
As it was said in this thread, he has set dog training back 30 years. The more sophisticated methods, based on gentle handling, positive reinforcement have been making giant, sweeping and successful momentum throughout the world over the past decades. It's just a shame that Hollywood and stardom is looked up to by the public over and above behaviorism.
I think though, that if there were more follow-up on those dogs, that was televised, you would see that there is a high percentage of regression. High rates of long term failure have been documented and witnessed by people in the profession, but you won't see that on his show. Sound methods and good owner training will not produce the degree of back-lash that is known to occur with CM's methods. It is a fact that when you rely on supresson, which he does, to "train" or "rehabilitate" a dog, the dog will not be reliable.