Umm, no they aren't
Series like Prison Break and Heroes are all connected one to another and i can't think of any other series that are the same right now. Sopranos, Simpsons, X files, Supernatural, Homicide, etc, etc, etc are not continous in the same way. Yes they have one major plot that goes on in most episodes, like governament conspiracy in X files, or chasing their father in Supernatural, but almost every show of X files is not related to the other, in one they are chasing the spider-like man, in the next it's the wierd creature from the mud, you get my point?
Prison Break is like a giant movie, every show contionous on the next one so you gotta expect some milk cowing..