Here's what is really happening. You say "home tv's and lights turns off and on again in a hundred of second" In all likely hood the lightning has hit the substation high voltage line supplying your home, or the high voltage supplying the substation that supplies your home. The power system has many different ways of detecting faults (tree on line, lightning, power system equipment shorts. etc.) In this case it would likely be the line "relaying" (fault detecting sensors on the power system) has detected the fault (lightning to power line to ground) It sees the fault, trips (opens) the breaker (shuts the power off) to where the fault is (the one supplying your house or your substation) and "recloses" (a feature of the fault detecting system that very quickly closes the breaker back up) as the vast majority of faults on the power system are transient (very short lived, tree branch burn off, lightning stike over, etc.) The reclosing feature is quite often only set for 1/2 a second. I know this as ran the high voltage power system (550,000 V) for 32 years. I stumbled across your sight looking for a good laymen's explanation of voltage drop from ground zero for a lightning strike for a court case I have with a cable tv system company. I'll check back once or twice in the next month or so in case anyone has questions or comments. If the lights hadn't gone out completely that would be an entirely different scenario with an entirely different explanation.