Our first solid spoiler for Chuck season 4 is here, courtesy of Ausiello! The title of the season premiere is “Chuck vs. the Anniversary.” Anniversary of what? And for whom? Speculate away!

Note: the season 4 premiere date has not been announced, but we suspect it will be either September 20 or September 27 on NBC. The season 3 on DVD or Blu-ray will be released September 7 in the U.S.

Updated 07.15.10: NBC just released their fall premiere dates, and contrary to previous rumors, Chuck season 4 is confirmed to debut on Monday, September 20 at 8/7c.Â See you there!