In the episode, "Louise Feels Useless" in the very beginning of the episode there are two magazines on the table and Louise was trying to decide which one to read. One of the magazines had ED and Chico on the front Cover and Louise looks at both magazines and decides to read the other one-LOL I think it was a inside joke because right after Louise picks up the other magazine, the camera zooms in so you could no longer see ED and Chico. ED and Chico was only seen when Louise was trying to make her decision about which one to read. Funny stuff.