The Big Bang Theory season 8, episode 7 airs tonight on CBS! Here’s everything you need to know about “The Misinterpretation Agitation.”

After being shifted to Monday nights for the first six episodes of the season, The Big Bang Theory season 8, episode 7 will mark the geeky comedy’s return to it’s established Thursday night slot. The episode, titled “The Misinterpretation Agitation,” will include some lighthearted moments – but also present a relationship challenge for Leonard and Penny.

“The guys try to help Penny out of an awkward work dilemma,” CBS says. “Meanwhile, Amy and Bernadette argue over whether or not female scientists should play up their sexuality.”

On last week’s episode of The Big Bang Theory, Sheldon and Raj attempted to train for a science-mining mission, which quickly turned into a disaster. Meanwhile, Howard and Bernadette wound up bickering over their own lives when Penny and Leonard turned to them for advice on how to handle Penny’s new financial independence.

No preview has been released yet for “The Misinterpretation Agitation,” but two sneak peeks indicate that Penny and Leonard’s determination to not let anything tear them apart may be tested in the light of new information about Penny’s workplace practices.

But at least the still photos make it look like they’re having a good time.

Where to watch ‘The Big Bang Theory’ season 8, episode 7 online:

Catch The Big Bang Theory season 8, episode 7 on CBS.com. New (and old) episodes are also available for purchase on Amazon and iTunes.

The Big Bang Theory season 8, episode 7, “The Misinterpretation Agitation,” airs tonight at 8:00 p.m. on CBS.

What are your hypotheses for ‘The Misinterpretation Agitation’?