Enjoying this discussion on who was first. Not the 1st time i've engaged in this back & forth, but always great to see new information and other's point of view.
To add to the mix I am including this ad dated Jan. 21, 1954 from the Abraham Strauss Dept. Store in NYC. The ad is for their house brand AMC color receiver.
The text notes that the set was produced by The Philharmonic Radio Co. Here an ad for their 1952 TV receiver:
http://www.tvhistory.tv/1952-Philharmonic-Ad.JPG.
The ad also invites customers to come in and view The Dinah Shore Show telecast in color at 7:30pm that evening. I have also included a copy of that TV listing from TV guide. The ad also invites people to place their order. I apologize
for the quality of the ad. It was copied by me at the L.A. library from the New York Times microfiche file many many years ago.
-Steve D.