We have a few bits of information to share on upcoming episodes.

-There will be a rerun of the Season 3 premiere, The Electric Can Opener Fluctuation, on November 30th.

-Danica McKellar, star of The Wonder Years and author of best selling mathematics books, will guest star in the 11th episode of this season, Bill Prady revealed on his Twitter account.

-The 12th episode of this season will be titled 'The Maternal Congruence'. Dave Goetsch posted the cover of the script on his Twitter account. Christine Baranski is to reprise her role as Leonard's mother in this January episode.