[nephihaha]

The earlier Red Dwarf episodes were filmed in the BBC cafeteria and other similar locations. The difference is that Red Dwarf was supposed to look grimy. They were on a mining ship with few luxuries. Red Dwarf was more in the territory of Dark Star, and played into that. (Early Red Dwarf tended to use physical models and costumes for a lot of effects. CGI has never been especially great on RD.)

I did watch Babylon 5 when it first came out in the UK. Deep Space 9 definitely had better looking effects, but I preferred B5 to DS9 on the basis of other factors.

[Apocryphon]

I think B5 has a variety of environments, and some of them are quite nice, and I like the moody bustling alien cantina type spaces. But they also have too many dark industrial passages, which doesn’t always fit the scenes and come off rather cheap.