America's Funniest Home Videos" begins its 20th season with all-new footage of what happens when adults, children and even inanimate objects are at their spontaneous best. Hosted by Tom Bergeron, "America's Funniest Home Videos" is the longest-running primetime show in ABC history. Season premiere highlights: A hidden camera revealing a dog stealing bread from a toaster; a dog who waits every day for the ice cream truck to arrive (and to gobble down his daily ice cream cone); an office prank with a remote controlled spider; a man cutting down a tree -- which lands on his house; a salute to Florida, with clips collected from all over the Sunshine State; and a clip montage of people getting sprayed in the face by a faucet prank.