Opaque layout, but underlying channel visible at borders. Yes, when listing the contents of Replay Zones, or in a zone-based Replay Channel. Yes, when searching or browsing by time. Filter in EPG in upcoming release 2.0. Returns list of all shows that match your criteria.
List is ordered chronologically, by the airing time of each show.
Shows with multiple airings appear multiple times. May be filtered by a genre. No, but you can see the next airing time for each channel the show appears on. Yes, new channels are visible by default. Yes, new channels are hidden by default.