Harvin will debut after the bye.
I mean, I thought about Pete letting him play against his old team, because he likes his players to be motivated, but PC's focus tools feel a little more professional than that. Add to that, Seattle really doesn't look like it needs Harvin to win at home against that terrible defense, and Pete is going to want to save the "Harvin surprise" for a much bigger challenge. So we'll see him after the bye, maybe even against San Francisco.