The Re-Entry Minimization

The Re-Entry Minimization is the fourth episode of the sixth season of the CBS sitcom, The Big Bang Theory. The airdate of this episode is yet to be announced.

Plot
Howard returns to Earth feeling dejected when he finds out that his friends are not waiting for him at the airport at the request of Bernadette, who wants to spend some quality time with him. She, however, is having a cold, disabling them from spending some private time together. Howard feels further dejected when he learns that during his time away, his mother is having an affair with his dentist and Stuart has taken over his spot in his friendship with Raj, since they are living together. Meanwhile, Sheldon, Leonard, Penny and Amy hang out at the guys' apartment and participate in a guys versus girls competition.

Reference

 * Taping report on Fanforum