Since the series was not shown in my area I'm not certain when the episodes were broadcast, so I have to consult outside sources for info. According to epguides.com the entire series was broadcast in 1989-90 ending on 9/09/90 although many episodes are shown aired more than once a week. Since...
There's always the 1989-90 syndicated version of Dragnet (the only version without a Joe Friday character). Fifty-two episodes were produced, but I don't think it's available anywhere. I don't know if I'd like it but I would like to see it. It wasn't shown in in my area.