Opposition in the fleet continues as rebels seize control of Galactica and take steps to eliminate Roslin and Adama.Photos released by SciFi suggest Baltar makes it to the Cylon basestar but also makes it back to Galactica to negotiate with Gaeta. Last week’s episode, which evoked both “Die Hard” and “24,” was one of the best “Galacticas” to date. Right now the only series in danger of usurping “Galactica’s” place at the top of my 2009 best-series list is “Mad Men.” 10 p.m. Friday. SciFi.