Expertise:  Can answer any type of question. Specifically good at answers non-plot specific questions (aka those questions that it's nearly impossible to google for). Also good at any pop culture references in the show. I have a nearly verbatim recollection of every episode.

Experience in the area
Have watched every episode in upwards of 10-15 times. Own complete DVD series. Still regularly watch 2-3 episodes per day.

Education/Credentials
BS in Computer Engineering from Boston University, although that didn't really contribute to my Seinfeld knowledge other than the fact that being an engineering major I spent a lot of time watching television.