I started watching Babylon 5, the first two seasons of which being loaned to me by Dennis & Agnes. It’s basically Star Trek sideways with less convincing graphics, (slightly) more variations in species appearance than merely forehead wrinkles, and a plot that will probably grow on me. I’m easy when it comes to sci-fi, and many shows take more than a season to mature.
B5 Rocks. The storyline basically covers all 5 years, with a good deal of things that happen in 1 episode showing fruit many episodes later. Probably my favorite scifi series.