Thanks for dragging up some wonderful memories! My father an I watched almost all of this stuff - on of our many shared pleasures. Being a Brit, I especially remember Logan's Run, UFO, Space:1999 and Blake's Seven.
A piece of trivia for you...if you look very carefully at the picture here (http://starringthecomputer.com/computer.php?c=209) you'll see an Acorn System One playing the part of a computer in an episode of Blake's Seven. This was Acorns first venture into "personal computing". That venture ended with the Archimedes and the invention of what became the ARM architecture.
I was in college when I saw "Logan's Run". What I remember is the whole audience (all college students) booing when Michael York wimped out and decided not to remove his wet pants (Jenny Agutter was totally nude).