Seth MacFarlane has a legion of devoted followers, but he takes nothing for granted.

When TV Squad asked MacFarlane a week ago about the success of 'Family Guy: It's A Trap!' (his spoof on 'Return of the Jedi'), which comes out on Blu-Ray and DVD on Dec. 21, he carefully replied, "We don't know [it's a success] yet. It could bomb. You never know."

Yeah, right. Who doesn't want the highly-anticipated movie as a holiday gift or stocking stuffer? (All three 'Family Guy' 'Star Wars' spoofs are now available, too, on either DVD or Blu-Ray as a boxed set -- 'Laugh It Up Fuzzball: Family Guy Three-Pack.')