Hacking ensures that only sound is heard, no video for television channels

Whenever the engineer and domain investor will protest against the identity theft, financial fraud of ntro, the ntro employees are allegedly hacking the set top box for cable television .
So on 13 June 2018 at around 7.45 pm, for BRDS cable service in Panaji, Goa, for most of the television channels,including the local Prudent, Star Plus, Colors, Zee, Sony, &TV, only the sound is heard only with disturbance, no video is being displayed.
There may be a problem in the cable network signal being broadcast, the video component has disappeared. Last time this problem was faced, it was restored in a few hours. It is a major problem for senior citizens who relax daily watching television