A:AnswerI would keep checking. That's what I had to do. This is a very popular model, and for good reason. I see they are back in my area. Also, ask customer service in your store what they can do for you. Sometimes they can get one from another store, or might even have one hiding in the storeroom somewhere.
A:AnswerYes they can be filtered out. I have OTA antenna, and get triplicates of channels. I look at which one the tuner receives the best, and then delete the others. You have to access this feature under (I believe) channel guide. I'm sorry I am away for holiday, or I would check the tv and walk you through exactly how to do it.
A:AnswerYes, it does. It is described, with a diagram, in the very superfiscial instruction manual. In the lower left on the back (facing the back) there is a square with a button in the middle. That's the power, plus a few other adjustments.
