Yes, Liz Lemon once dated Jon Bon Jovi. He shows up on the Valentine's Day episode.
Added:
Elizabeth Banks guest stars on this episode of 30 Rock. She plays a love interest of Jack.
Added:
Liz Lemon has an interesting history of dating. A few of her exes are seen here.
Added:
The gang is all dressed up on 30 Rock February 4. What for? That we will have to wait and see.
Added:
Liz Lemon is one of our favorite TV characters. Mainly because we feel this is what Tina Fey is like in real life.
Added:
Jenna Maroney and Kenneth Parcell on 30 Rock. These two always crack us up.
Added:
Liz Lemon and Jack Donaghy in "Verna," the February 4, 2010 episode of 30 Rock. These two are classic together.
Added:
Jack Donaghy is the funniest CEO of all time. Here he is in "Verna," the February 4, 2010 episode of 30 Rock.
Added:

30 Rock Quotes

Jack: Never go with a hippie to a second location.
Liz: I need to do that thing that rich people do where they turn money into more money. Can you teach me how to do that?
Jack: With my eyes closed.

Hey, nerds! Who's got two thumbs, speaks limited French, and hasn't cried once today? [pointing thumbs at self] This moi.

Liz