“…They were chosen from the ranks of professions concerned with television, and the list is revealing for its repetitive nature: engineers who designed TV receivers, broadcast engineers, engineers in "communications equipment design," television research engineers, television transmitter design engineers, and editorial writers for technical journals. The tests also had observers: teachers (what kind is unclear), television service engineers, and consulting engineers (DeCola, Shelby, and McIlwain 1954). On one level, the list is highly exclusive, consisting primarily of different kinds of engineers and the people who write for them or teach them; on the other, the sheer proliferation of types of engineers in the list shows that they hoped to approach the problem from all angles within the engineering profession.…”