Hello all. I recently started subscribing to HDTV. Quite a noticeable difference compared to standard definition TV. I know that there are many TV programs recorded and broadcast in HD. My question relates to movies (like Star Wars, Finding Nemo, etc, etc) which are broadcast on HD channels. Are they broadcasting from a source which is truly recorded in HD (720p or 1080i)?? Or are they just upconverting the typical DVD source?