will I be able to get closedcaptions/subtitles via ATSC? and ClearQAM?
I would suggest to expect to be disappointed. However, that said, its not an area that I follow, so I'm largely ignorant. I know that there has been work in this area from time to time, but as I said, I'd temper your expectations. I know Devin was doing CC work over the last year or so, though I think it was for analog sources. In any regard, he'd probably be able to let you know the current status. You can find him here: .http://www.kernellabs.com/blog/ ... or on the Linux Media Mailing List (http://www.linuxtv.org/lists.php .. which you might want to write to instead (thereby opening the question up to a wider audience instead of relying upon one individual's response)).