For me the first 9 years of the TV version are the best. The original cast, and B&W. Within that, the first 6 years are the very best. Most, if not all, episodes are transcribed versions of the radio versions. Unfortunately the scripts had to be mellowed some for the more restrictive TV venue. e.g., on the radio version Kitty is well known to be a prostitute, which many saloon girls were at the time, in remote areas of the West. In the TV version she is made a co-owner of the Longbranch, becoming a business woman. Otherwise, the program is a classic in every way. I intend to get seasons 1 to 9. After season 9, Chester leaves the show, and Dillon is on maybe 3 minutes in many episode - long enough to say "I've got to go up to Hayes City for a week," never to be seen again. That left Kitty and Doc to carry the show, along with an endless stream of new and mostly temporary characters. It's really a different program, and is in color. Another minor problem is that in going to a 60 minute format, starting in season 7, the plots often get stretched pretty thin, still basically being the 30 minute radio version plots. The 30 minute episodes in seasons 1 to 6 are better in my opinion, if not dramatically so. Still, I'll get all the seasons up through 9. It's still one of the best programs to ever appear on TV.