[benman94]

If your only criteria is that a) the set existed, b) the set could have been sold, and c) the company advertised the set or claimed to sell the set, then the Admiral would not have been the first set offered. Zenith claimed to have sold one of their 15 inch sets in December of 1953 to WGN-TV in Chicago. They also claimed to have started production of their 15 inch receiver on November 19, 1953.
In any case, the claims of both Zenith and Admiral are starting to look (to me anyway) more and more like hyperbolic marketing drivel.

I agree with Steve: the Westinghouse should be considered the first production NTSC color television set.