30 Rock 8 p.m., Channel 7

I’ve written plenty about my love for “30 Rock,” which has an hourlong finale tonight. Over the years, the show has had a few ups and downs, but I stand by my opinion that overall, it has remained sharp. A bunch of special guests are scheduled for the Emmy-winning sitcom’s last hurrah, including Nancy Pelosi, Ice-T, Julianne Moore (above with Alec Baldwin), and Salma Hayek.