In my opinion the following retro programs on Hulu are well done, original ideas heavy on episode variation, and will keep interest as a past-time. Stop watching 9 seasons StarGate SG1 and Buffy the Vampire Slayer and try these quality programs instead:
http://www.hulu.com/quantum-leap - Only 2 regular cast, different setting and time each episode
http://www.hulu.com/outer-limits - No Regular Cast, different setting and time each ep
http://www.hulu.com/sliders - Different parallel universe each episode makes a lot of story ideas possible
http://www.hulu.com/battlestar-galactica-classic - cost over a million dollars per episode to make back in 1978, so only one good season was produced and aired