I discovered Wagon Train episodes a couple of months ago, when I had my TiVo set up to record Ward Bond shows. I was instantly hooked, and though the station (RetroTv here in Orlando) constantly replays some of the same episodes, I've managed to get quite a few under my belt, including "The Colter Craven Story" And I spotted Duke right off, too, chuckling when I saw his "Michael Morrison" credit. Didn't fool me. 
One I just watched yesterday was a bit of a tear-jerker. One of the later ones, with John McIntire..guest starred Bobby Darin, which was very interesting to me. I don't think I've seen any I haven't liked, and so far have been able to store about 30 episodes.
