Originally Posted by HoustonPerson
Samsung (and others) uses the exact same TV Guide On Screen, and their software will lock down the tuner and 100% prevent bogus stations from being set up....and it "tunes" many times faster as well.
About ten years ago (not now, so please don't e-mail me with your problems!) I was a software engineer for Mitsubishi Consumer Electronics America, and became very familiar with the issues of implementing systems like TVGOS in a television set context. At that time we were implementing StarSight, a similar onscreen guide system, but the principles are the same.
Bottom line is that a system like TVGOS is not simply plug-and-play for manufacturers. Gemstar probably provides source code for a reference implementation, but a LOT of work goes into integrating it into what's already going on with a TV set. For example, the manufacturer has a wide choice of real-time operating systems to use to manage the TV's tasks, and it has to be adapted to fit.
Without delving into personal opinion about what may or may not be going on with this, or the quality of Mitsubishi's implementation, all I can say is that different manufacturers having different degrees of success implementing TVGOS is pretty much par for the course.
Anyway, I just bought a WD-52628 over the weekend, so I guess I'll get to see how things go. So far I've spent hours fiddling with the user color controls and have had real trouble getting to a point at which I'm comfortable with the look of the images, but my service manual's on order so we'll see how things go once I have the remote codes and documentation to get to the real adjustments.