I’d like Firefly back. They beat Trek & Star wars into the ground.
I was unhappy with how Serenity put the series out, but it's now been over a decade since Firefly, so it won't be back. But I still watch the episodes whenever the Science Channel runs them, or if I'm feeling nostalgic for Serenity and her crew. IMHO, that was one of the best written shows, and best casts, ever on TV, period.
Mark