When I first saw that magazine cover, I scoffed, because no 1950 TV that I've ever seen would be viewable in full sunlight. The daylight would wash out the picture. The accompanying article says that there really were a few such TVs, although they may not have been available to the general public. A "prominent movie star" asked H.L. Hoffman, president of the Los Angeles Hoffman radio/TV company, for a set that he could watch at poolside. Hoffman provided a modified model 947 with a "black-faced picture tube" that was angled slightly downward to reduce glare. The article says that a similar set was installed "near" the pool at the Beverly-Wilshire hotel in Beverly Hills, and perhaps at other area hotels.
The TV picture in the magazine cover looks faked to me (of course, that would not be terribly unusual, even for an indoor shot of a TV playing). There is a similar black and white photo accompanying the article inside the magazine. It shows the same TV and the same three women, but in that shot, the TV screen is completely washed out from direct sunlight.
I don't doubt that these TVs existed -- at least, for a few of the rich & famous -- but I'll bet they looked a lot better in shade than full sun.
Phil Nelson
Phil's Old Radios
http://antiqueradio.org/index.html