I've tried the file from Pay Snyder for the CT-34WX52 and all the discrete video input codes *except* for the 2 component video inputs work on my CT-34WX50. Either the codes in the file are bad, or they're diferent between TVs. Strange that it's both the component video discrete codes and not a mix of that and the regular S-video inputs.
I've tried kludging by using Ch+/- to get to a known location then cycling through the rotary selector with "Source" codes, but this isn't reliable and takes several seconds of nasty screen flashing when it does work.
If anyone has a newer Panasonic Tau TV I'd be indebted to get the Discrete video input codes if they are known. Panasonic seems to delight in using subtly different remotes.. My remote is a EUR511162. It has no discrete codes on it, but FWIW. I know for a fact there's a remote very similar to this one which does NOT have all the buttons for my TV (ick, I had one until the dealer got a replacement) but I'm hoping here.