NEW YORK (AP) ? Have viewers seen the last of "Last Man Standing"? Not without a fight, to judge by the uproar over ABC's announcement that the Tim Allen sitcom won't be back in the fall. An online petition on change.org called for a boycott of ABC for yanking the show and praised its "conservative values" ? values many angry fans accused ABC of wanting to muzzle. She did say the same factors that go into decisions about renewing any of the network's shows were considered.