A tip of the hat goes out to Dave in Michigan for his generous donation to the blog this week and to Michael Utz who sent some interesting transcriptions my way for the collection. I'm working on the discs over the next week or so and they should turn up on the blog soon.
I didn't get notifications about the different comments from the blog until today, so I missed several of the comments, particularly about "Police Reporter".
Bob noted that the December 1933 reference to "Police Reporter" in the New York Times radio program grid for WEAF probably refers to that night's episode of "The First Nighter", which was called "Police Reporter". So, that would make the February and March 1936 listings in the LA Times for KGPJ the earliest possible references to the show so far in newspapers. It's hard to tell when the show was recorded and first broadcast until more info turns up. Some of the discs in my set have dates from 1935, so, for now, I'm calling that as the earliest date the show was syndicated, but I suspect it might be earlier.
Dr. OTR notes the similarities of the show to "Calling All Cars", which started up in 1933 and was produced in Hollywood. Radio Release, Limited, which produced "Police Reporter" was also headquartered in Hollywood, so perhaps there was some overlap with writers or actors on the two series.
Dr. OTR also wonders how I find these discs. Well, this set turned up on ebay. Sometimes I find discs there and, in some cases, I have collectors or individuals that have run into discs in estates contact me after finding my blog. But, if you've got an old relative that used to work in radio, I'd be happy to rummage around your attic to see what might turn up.