Time and temperature? Aren't there signs on banks that display time and temperature? Besides, if people are really that hard up that they cannot afford a clock and thermometer, they have ways to tell time and temperature without that damn thing wasting electricity. I would not rely solely on the washtowel clock to keep an appointment. Besides, if they know the date, they can estimate the time simply by observing where the sun is in the sky--and, at night, they can observe the moon and the brightest stars. That's how they used to do it before the washtowel erected that monstrosity of a waste of electricity.
"A cult member finds the truth." I wonder how often that happens. How often does a witless realize that they are in one? Many simply leave the cancer. Others investigate the truth about other Christian religions, and realize that the washtowel isn't all Christian but half Jewish and dishonest about it. Still others find the truth about Satan--and become Satanists. Quite a few find the truth through science, putting jehovah out of the picture altogether. And, none are forced into such positions.
Good for using tablets. I recommend placing apostate material on such tablets and using that. The choices are endless, and you have the freedom to adjust what you put on the tablet at your discretion. Some put Satanic material on a tablet and use that at the boasting session. Others might place material from this forum or other apostate sites, Christian or not. You could place a novel of your choosing on your tablet, or you could place other denominations of whatever religion you feel like. Some might choose to put some genuine science that rebuts what the washtowel is teaching, or even porn (I don't recommend kiddie porn, for obvious reasons--but regular adult porn is fine). Some might place college level courses on a tablet and use that during the boasting session. And there is the option of using a tablet to play video games. You could place several different articles on one tablet, and place the washtowel in one place so Brother Hounder thinks you are viewing that and your choice of other material elsewhere. Amazing what you can do with enough memory--you could even load a movie onto the thing! Preferably one that is R rated.