When for example, aired on ME-TV (https://www.metv.com/shows/green-acres) and Pluto (https://pluto.tv/stream-us/shows/green-acres-ptv3), it appears that only the old standard definition transfers exist. Compare that to The Beverly Hillbillies and Petticoat Junction (https://jacksonupperco.com/2020/09/30/headin-down-to-hooterville-a-look-at-petticoat-junction/), which were produced at the same time and by the same studio. Those latter two shows are aired with pristine and beautiful high definition transfers.