B B...first, let me give you a huge congratulations on the 30 year anniversary, and coming up with a good plan for a gift that each of you will enjoy for years to come! 30 years is no small feat in this day and time, but I don't have to tell you that.
TV technology is unreal these days...I use up my TV's...when they die, I get a new one. Recently, my old fashioned picture tube Mitsibushi bit the dust after some 15 years, so I got a Sony Bravo and I have been amazed at the quality of the pic, particularly on the hi def channels...some programs, like the Discovery outdoor stuff, actually almost looks 3D, it's so good. Mine's only a 42" (had to fit it in a particular hole size in the den, but it works for me, as I'm only about 10' from it.
Enjoy the new TV, and the next 30 years together!