Here is a short clip of Prague Old Town Square starting with the Astronomical Clock, St. Nicholas Church, Jan Hus and Virgin Mary Memorial, followed by the Tyn Church spires. It is followed by a pan of the Church of St. James and views from the Vltava River cruise. You can find additional images including Prague Castle on the Prague Gallery page.
Also in the Old Town area, I toured the Church of St. James. Here is a clip of the interior complete with organ music.
The following video is from an evening dinner cruise on the Vltava River.