Animation is often used in advertisements. The pictures can vary from hand-drawn traditional animation to computer animation. By using animated characters, an advertisement may have a certain appeal that is difficult to achieve with actors or mere product displays. Animation also proofs the advertisement from changes in fashion that would date it. For this reason, an animated advertisement (or a series of such advertisements) can be very long-running, several decades in many instances. Notable examples are the series of advertisements for Kellogg's cereals, starring Snap, Crackle and Pop and also Tony the Tiger. The animation is often combined with real actors. Animated advertisements can achieve lasting popularity. In any popular vote for the most memorable television advertisements in the UK (such as on ITV[6] or Channel 4[7]) the top positions in the list invariably include animations, such as the classic Smash and Creature Comforts advertisements.
Other long-running ad campaigns catch people by surprise, even tricking the viewer, such as the Energizer Bunny advertisement series. It started in the late 1980s as a simple comparison advertisement, where a room full of battery-operated bunnies was seen pounding their drums, all slowing down...except one, with the Energizer battery. Years later, a revised version of this seminal advertisement had the Energizer bunny escaping the stage and moving on (according to the announcer, he "keeps going and going and going..."). This was followed by what appeared to be another advertisement: viewers were oblivious to the fact that the following "advertisement" was actually a parody of other well-known advertisements until the Energizer bunny suddenly intrudes on the situation, with the announcer saying "Still going..." (the Energizer Battery Company's way of emphasizing that their battery lasts longer than other leading batteries). This ad campaign lasted for nearly fifteen years. The Energizer Bunny series has itself been imitated by others, via a Coors Light Beer advertisement, in motion pictures, and even by current advertisements by GEICO Insurance.