There are a number of national and locally produced television and radio channels available both over-the-air from the nearby RTCN Białystok ( Krynice ) Mast , the seventh highest structure in Poland , in addition to transmitter sites within the city .
There are a number of national and locally produced television and radio channels available both over-the-air from the nearby RTCN Białystok ( Krynice ) Mast , the seventh highest structure in Poland , in addition to transmitter sites within the city and on the cable television network within the city .