Anirudha Bro, point no 2. Signals will be affected at broadcasters centre ??? Well many broadcasters have high powered backup generators, and many other backup facilities, so signal loss from their end is not possible. And MSO too have backup facilities. What my society has done is we have asked the LCO to install boosters and amplifiers and most of the flats have UPS/Inverters hence we can say no power loss.