What is "stb"

State Security (, ) or StB / ŠtB, was a plainclothes secret (political) police force in former Czechoslovakia from 1945 to its dissolution in 1990. Serving as an intelligence and counter-intelligence agency, it dealt with any activity that could possibly be considered anti-communist.

STB is a Ukrainian commercial television network. Today, the coverage area of the network is 85% of Ukraine's territory. It is broadcast in all oblast centers and all Ukrainian cities with a population greater than 50,000. It occupies the 1st place in the list of the leading TV networks in Ukraine.