Thats sooooooo simple to fix! /s Honestly, cut the wires leading to the antena. If you know that to look for, boom! no more wifi again! And if you dont, boom! No more TV! You always run a risk doing this, if you dont know, ask questions, keep the TV away from electricity for a few days and make shure the larger capacitirs are discharged or it will really hurt or worse. The antenna is usually a piece of scrap metal or the metal around the lcd/led pannel's frame.

That sounds illegal, also my robot vacuum cleaner kills people. We cant get it to stop doing that besides not having guests over. Theres sadly no market for regular vacuum cleaners anymore and we have a dust problem. So..... /s