Hah! I hate that! I did that with more than one TV show, the latest being Lie to Me. Now I check to make sure they have a good amount of episodes/seasons before I watch the show and get invested in the characters.
Right now I'm waiting impatiently for more Eureka. I finished all the seasons they have and want MORE. I obsessively scroll through the new releases to look for shows I follow to see if any of my favorites have come out.