Sixty years ago, this was the community television antenna in Ellensburg, Washington, located about 100 miles east of Seattle, with a mountain range in between. It consists of sixteen stacked yagis, half for channel 4, and half for channel 5.
The system was shown in the June 1955 issue of Radio-Electronics,
which reported that the people of Ellensburg were receiving nearly perfect pictures with the new antenna system. The two Seattle stations were KOMO-TV on channel 4, and KING-TV on channel 5.
The same issue lists KCTS as being on the air on channel 9 in Seattle. That noncommercial educational station had just gone on the air in December 1954.
More information about the antenna system can be found in the Ellensburg Daily Record, March 9, 1954.