disabling a TV
Long story, but I need to be able to temporarily disable an old-style (picture-tube) tv in a way that a couple of kids can't readily find and reverse.
So the off button or unplugging is not going to suffice. Nor will a sledgehammer, much as I would enjoy it. I'd like to have a way that doesn't involve major dis- and reassembly.
Any suggestions? Disabling the cable would be a reasonable second-best.