I have a one year old Sony KP-57WS520 (CRT RPTV). Can my TV be considered to have good focus if the scanlines are very defined close-up....and even sometimes slightly noticable by sitting 10 feet away? Is this a good test? I'm just asking, as I was wondering if they could even be improved upon. However, my ISF tech who calibrated the set said the focus was good and didn't think he could get it better. I've also heard Sony RPTV have good focus out of the box.