It was a good experience: they kept us informed of what was going on the whole time, bringing a judge in to explain the delay in impaneling us, and having us watch a badly-degraded videotape on the whole process, the content of which was probably made in the 1980s.
I did several homework problems while listening to inane television shows in the background (Regis & Kelly), and was faintly disturbed by the fact that the majority of the jurors had not even brought a book. They sat like doped sheep in front of the TV for two hours. (Except for one break where the jurors were able to go across the street to Dunkin' Donuts and most came back with coffee.)
They sent us all home just before 10 a.m. I am all set for another three years. :)