I remember one episode of STTOS that referenced Christ, other that that it espoused a pretty humanistic doctrine.
SGU, pro Christian? To me is was more existential.
The one “pro-Christian” thing I recall about SGU was early in the run when they were going to crash into the star, thinking that they were about to die, some of the crew went to party to the end, the others had a prayer group. The prayer group was reciting a rosary —or at least the “Our Father” or “Hail, Mary”, I forget which — the point being that they were reciting actual Christian prayers, not some New Age BS.