The Grand Old Opry's first radio broadcast was on this day in 1955 and after nearly 50 years of music, many of its stars' pictures now hang in the Country Music Hall of Fame. If you're getting ready to hang a picture in your own hall or elsewhere in your home, here's a thing or two you should know before you hammer a picture-hook nail into the wall: Heat it first with a match; it'll go in easier and won't chip or crack the plaster. Before you hang anything, turn it over and put stick-on rubber bumpers on each corner or a bead of silicone caulk. Be sure to let it dry first. You can even roll up masking tape inside-out and put it on each corner. Then, when you hang it and line it up, it'll help keep your frame straight and level; you won't have to keep adjusting it every time someone slams the door. And that's the On The House tip for today.