A Robert De Niro appearance. Excellent. I was wondering when he would stop by this show and this was the perfect role for him on it, although I wish they explored his "British past" more.
The Tracy and Liz storyline was good though, and I wish we would get more scenes with these two clashing. The original premise for this show was Liz struggling to handle Tracy's shenanigans, but 30 Rock has since deviated way away from that. No surprise that the return of said concept leads to another good episode.
Lots of laughs here, very enjoyable installment of NBC's 30 Rock.