Last episode on 29.01.2012: S23E12 (Episode: Moe Goes From Rags To Riches)

Upcoming episodes:

S23E13 @ 12.02.2012: airs in 7 days. (Episode: The Daughter Also Rises)

S23E14 @ 19.02.2012: airs in 14 days. (Episode: At Long Last Leave)