TECH-ADVICE BLEG: I’VE FINALLY FORCED MY OWN HAND on the big flat-screen TV upgrade, by giving the old TV in my basement to my brother. My friend Doug Weinstein researched things exhaustively and bought this JVC model. I went over and looked at it and thought the picture was terrific, and if it supports the bewildering array of hookups he uses (multiple Tivos, multiple tuners, even a venerable Sony VCR) I’m sure it will fit my needs. Any reason why this is a bad idea?