All of those have had DVD releases...
Based on the OP ( https://www.hometheaterforum.com/community/threads/what-series-do-you-want-so-badly-you-would-be-willing-to-pay-a-premium-price.373330/post-5032881 ), this thread is for series which have never had a release or are significantly stalled.
The first 4 seasons aired on ABC. CBS picked it up with season 5 and it remained there until it ended. The NBC reruns were in the daytime. It was quite common in the 50s/60s for a series to be airing in syndication on one network with new episodes appearing on another. This was a time when...
That's likely because they started "in the middle" of the series due to Thomas' reported refusal to allow the 3 seasons with Jean Hagen to be seen anywhere and that he didn't like season 4 (the ABC years of the series). S4 has been seen, infrequently, in syndication but, AFAIK, the last time...