Having eliminated Hank’s granddaughter as his competition (here’s a “There, there.” card, Kaylie), Jack Donaghy is receiving the promotion of his dreams: He’s the new CEO of Kabletown! In the third-to-last-ever episode of 30 Rock, which airs at Thursday at 8 p.m. on NBC, Jack (Alec Baldwin) is flooded with congratulatory goodies from all sorts of folks, including Liz (Tina Fey). As you will see in the clip… Continue reading ’30 Rock’: How does Liz congratulate Jack on his promotion? — EXCLUSIVE VIDEO