Season 8
Stewie and Brian travel through alternate universes in an homage to "Sliders," spies Dan Aykroyd and Chevy Chase (guest-voicing as themselves) move into Cleveland's old house and Stewie scores tickets to a Hannah Montana concert.
Episodes
1 Road to the Multiverse Sep 27, 2009 
2 Family Goy Oct 4, 2009 
3 Spies Reminiscent of Us Oct 11, 2009 
4 Brian's Got a Brand New Bag Nov 8, 2009 
5 Hannah Banana Nov 8, 2009 
6 Quagmire's Baby Nov 15, 2009 
7 Jerome Is the New Black Nov 22, 2009 
8 Dog Gone Nov 29, 2009 
9 Business Guy Dec 13, 2009 
10 Big Man on Hippocampus Jan 3, 2010 
11 Dial Meg for Murder Jan 31, 2010 
12 Extra Large Medium Feb 14, 2010 
13 Go, Stewie, Go! Mar 14, 2010 
14 Peter-assment Mar 21, 2010 
15 Brian Griffin's House of Payne Mar 28, 2010 
16 April in Quahog Apr 11, 2010 
17 Brian & Stewie May 2, 2010 
18 Quagmire's Dad May 9, 2010 
19 The Splendid Source May 16, 2010 
20 Something, Something, Something, Dark Side May 23, 2010