Watching and writing up last night’s 30 Rock, alas, was one of the casualties of my continuing struggle against the giant-slug-like-virus-from-Fringe that has lodged in my upper respiratory system. (I know, it’s only 22 minutes of TV. But the virus-slug is a demanding taskmaster.) So I’ll let you DIY this one. The past couple 30 Rocks had been a little disappointing; did “Retreat to Move Forward” move forward?