The FIRST Program Guide - Issued June 30 to July 5th, 1941. The first two TV stations licensed for commercial broadcasting were New Yorks WNBT (which later became WNBC) and WCBW. They were both licensed on July 1, 1941. Earlier broadcasting was considered 'experimental'.
Definition of gage. 1  1 : a token of defiance; specifically : a glove or cap cast on the ground to be taken up by an opponent as a pledge of combat. 2  2 : something deposited as a pledge of performance.
Gage height (also known as stage) is the height of the water in the stream above a reference point. Gage height refers to the elevation of the water surface in the specific pool at the streamgaging station, not along the entire stream. Gage height also does not refer to the depth of the stream.