Originally Posted by GadgetQueen
Many people are not aware that it is often possible to get NTSC, Line 21, analog closed caption data through component video cables, which will provide the best picture quality for standard definition video. (However, when using a DVD player, it is essential to turn off progressive scanning and upconversion in order for the TV to be able to decode the Line 21 caption data. Some HDTVs, like some Samsung HDTVs, also do not provide decoding of analog caption data through component video inputs.)
That's a common problem with some HDTVs not offering CC as an option on component video inputs when people are in fact able to get CC through component cables as long it is in the interlaced mode, not progressive mode. It's rather perplexing why they would leave that option out on some HDTVs. I know ViewSonic is one of them too.
It's quite a pain in the neck that we have to keep fighting for equal access all of the times. It's a neverending battle. The HDMI technology is now a new battle to fight to gain equal access.