Originally Posted by RYankowitz
Your analysis is a good guess, and almost correct. WBZ-DT (and most of the other Boston DTV stations) transmits both analog and digital captions. WSBK-DT is only transmitting analog captions. There is no digital closed-caption signal transmitted for WSBK-DT.
Some sets, such as a JVC we have at the TV station, have a Closed Caption menu with a choice of caption types. On the JVC, the types are Basic, Advanced, and Auto, which correspond to analog, digital, and both. In the case of Auto, or both, the digital caption will be displayed if present, otherwise the analog, if present. It appears to me your set is locked on the digital captions. The menu where you can change this may be hidden in a different location than the one you have described, as it is in the JVC (it is under the "Initial Setup" menu).
One more point. I have a Sony HDTV set-top box which behaves strangely with some captions. When it detects digital captions it will display them, but turning the caption setting to off will display analog captions! The only way to turn captions off entirely is to set the box to display an unused caption format, such as "Service 2" (the digital equivalent of CC2). Your set may be equally quirky, so you may have to experiment.
Well, I've been hunting for it, as you say. I've been 'round and 'round the remote, the menus, and the manual, upside down and backwards, and I'm now feeling quite confident that, short of venturing into the factory service mode, which would most likely void the warranty, it is impossible to view closed captions on WSBK-DT using an LG 37LC2D HDTV.
So the question then is who dropped the ball? Did LG make a television which doesn't meet FCC specifications? Or does WSBK-DT's captioning signal not meet FCC specifications? Or did the FCC enact a set of regulations which is insufficient to prevent this sort of incompatibility?
This is quite the disappointment, as a member of my family is hard of hearing, and relies heavily on closed captioning, while others, myself included, have come to find it useful when people on-screen are mumbling.