8 p.m., NBC

Community
Pierce (Chevy Chase) signs up for a boating class, and Britta (Gillian Jacobs), Shirley (Yvette Nicole Brown), and Troy (Donald Glover II) join him on the open seas.

9 p.m., ABC

Grey's Anatomy
Derek (Patrick Dempsey) takes on a bit more responsibility as interim chief at Seattle Grace—does that mean we can't call him McDreamy anymore?

9 p.m., FOX

Fringe
Walter (John Noble) discovers that a catastrophic earthquake in New York is actually connected to disturbing experiments he and William Bell conducted on Olivia (Anna Torv) and other children many years ago.

9:30 p.m., NBC

30 Rock
Jenna's (Jane Krakowski) mother Verna (guest star Jan Hooks) pays a disastrous visit (we finally get to see where Jenna's crazy comes from!), and Liz (Tina Fey) and Frank (Judah Friedlander) move in together.

Season 3 premiere, 10:30 p.m., COMEDY

The Sarah Silverman Program
In the Season 3 opener, Laura tries to convince Sarah that she was born a hermaphrodite.