30 Rock is just about halfway through its final season, so luckily some beloved characters are coming back for a farewell episode. Chief among them: Dennis Duffy (Dean Winters), a.k.a. the Beeper King, Liz's horrendous ex-boyfriend. He'll be on the season's seventh episode, which airs November 29 and is titled "Mazel Tov, Dummies!" Man, we are really going to miss this show.
So excited for this spoiler, but so sad that the show is ending.