that fewer than 500,000 additional viewers watch Battlestar Galactica on DVR. The Nielsen ratings estimate for DVR watching (calculated over the seven days following an episode's initial airing) do not count shows watched on delay by fewer than 500,000 viewers, and Battlestar Galactica'' does not usually appear in the Nielsen DVR ratings. References External links "Revelations" at Battlestar Wiki "Revelations" at Syfy 2008 American television episodes Battlestar Galactica (season 4) episodes