My area of interest is the 1960's and earlier and, yes, it seems that there are no releases on the horizon, if ever. I'd hoped there was rumors or something from Warner Archives or the company that released Deadline & Decoy but...
In an interview with the owner of Film Chest:
Fans of “Decoy” will be happy to know Film Chest is in the process of obtaining the rights to another forgotten but important 1950s TV series, “Deadline,” based on real newspaper stories of the day.
“We have found the original 16mm film for that...
SAM BENEDICT was available for a period through the Warner Archive streaming site, as were other shows that were then released as dvds. Currently streaming is CAIN'S HUNDRED, which suggests it will be available later for purchase.