Pilot and next three are very good. And you can't go wrong with "Island of Illusion" and "Doomsday", nor with "Return of an Old Friend". And of course, "Green with Evil" will always remain one of the best serials ever.
Which new episode did you watch? If it was from Samurai you'll be glad to know that Super Samurai (the second half) managed to throw all the first half's problems out the window.