What year was John Walson Sr recognized by the U.S. Congress and the National Cable Television Association as having invented cable TV?

John Walson Sr. (1915–1993) is recognized by the U.S. Congress and the National Cable Television Association as having invented cable TV in the spring of 1948. Walson, owner of a Mahanoy City (PA) General Electric appliance store, needed to solve problems receiving signals from Philadelphia television stations, which were blocked by the mountains surrounding the town. Walson erected an antenna on a utility pole on a local mountaintop that enabled him to demonstrate the televisions in his store with strong broadcasts coming from the three Philadelphia stations. He connected the antenna to his appliance store via a cable and modified signal boosters. He then connected several of his customers who were located along the cable path. This was the first community antenna television (CATV, which was the term used in that era for what we now call "cable tv") system in the United States.