Here to fanboy over Babylon 5.
B5 is a political comfort show for me, especially these days. It was brazen for the 90s, with characters facing questions like: recovering from drug addiction, cross-cultural romantic relationships and their hurdles, colonization and genocide, bisexual representation, the loss of family members, and what to do if you're a military member serving a regime that you hate. It's deeply philosophical and mature, and it's had a profound impact on my life.
It had the time to develop complex relationships between characters. One of my favorite characters is an alien ambassador named G'kar, played by Andreas Katsulas.