Is CBS' top scripted show, Big Bang Theory, moving back to 8pm Monday?
Bill Prady (the show's Executive Producer) tweeting "Everybody sing... "right back where we started from..." could well indicate that.
And since I don't want to disappoint anyone who thinks they've got our site stereotyped.
How will this affect Chuck?
Update: commenters are indeed correct that even if the tweet signals a time slot move earlier, the first BBT timeslot was 8:30pm, while it has also put in time at 8pm.
Here is it's history from Wikipedia:
Season 1: Monday 8:30 P.M. (September 24 – November 12, 2007) Monday 8:00 P.M. (March 17 – May 19, 2008)
Season 2: Monday 8:00 P.M. (September 22, 2008 – May 11, 2009) Monday 9:30 P.M. (February 9, 2009)
Season 3: Monday 9:30 P.M