I had been hoping to find one of these; a Sony FDL-KB300 "Splashman" portable color LCD set. Got this one on eBay after watching it for about 6 months, as it came down to $200 from originally $500. It's completely waterproof, including the battery charging base. Uses magnetic induction for charging, as opposed to metal contacts! As far as I know, these were never even sold retail, but a few hundred marketing prototypes were produced to feel out the market. I really don't know too much about it, but there is a service manual published, as there also is for the never-sold PVM-4300 CRT set.
Charles