Yeah - these shows were originally 24 or 25 minutes on CBS/ABC, and they cut a minute or two out for the first syndication cycle. They probably run for 20 min at most these days.
I remember the Tina Cole episode was particularly short on MeTV, because they clearly didn’t have the rights to...
I give MeTV a lot of credit for uniting the syndication packages of “MTS”, “Bonanza”, “Gunsmoke”, and “Petticoat Junction”. You can watch all of those shows from beginning to end, on one channel, for the first time since their original network airings.