Russ - further info - I checked 1958 and I see why you would have missed it then. It was against Lawrence Welk.I wonder what was on opposite Wagon Train-- it must've been something I really liked because I never saw an episode of that Western.
In fact, to this day, I've never seen the series even in part. I will need to catch up or resign my commission in this thread.
BTW - It is fun to google a tv year and then check the schedule (like on Wikapedia) It's a real trip down memory lane.