There is a transcript on Foxnews.com of the Democratic response to Bush's September 13 speech here.   In an article on the speech that appeared on the Fox News website it states "Watch Bush's speech live on FOX News Channel or FOXNews.com at 9 p.m. ET., and watch the Democratic response delivered by Sen. Jack Reed immediately afterward streaming live on FOXNews.com."

So...the Democratic Party's response was at least carried on the Fox website. Whether or not it was carried on television I couldn't say, as I normally don't watch anything other than the Weather Channel and the local news.