Originally, from '62 to '64, CBS aired repeats of early(30-minute) episodes of 'Gunsmoke' under the 'Marshall Dillon' title, on Tuesday nights. The title change helped distinguish the reruns from the current episodes(which expanded to an hour in 1961). As far as I know, while the half-hour shows have since aired under the original title, those episodes are in a separate package from the 1961 and later hourlong shows. i thought I read that TV Land's package included on episodes from 1963 on, skipping the first two hourlong seasons.