This is the city: Los Angeles, California." With those words, an episode of the 1960s version of "Dragnet" would start. Perhaps the most accessible version of the classic cop concept . Just how good was it? Consider this: Its cancellation in 1970 was not because the network didn’t feel it was pulling in ratings, but because show creator/star Jack Webb was focusing on other shows, like "Adam-12" and "Emergency!" (which was this author's favorite as a kid). The 1950s "Dragnet" was cancelled for the same reason – Webb wanted to pursue other projects. "Dragnet" has aged well. Around his death,...