A Title Sequence composed primarily of clips from the series, sometimes intercut with artistic elements. Probably the most common form of Title Sequence for American shows, particularly sitcoms, but relatively rare in British series. The content of a Title Montage is similar to that of "Previously On...", but is closer in format to a Blipvert. Often, the montage will be updated from time to time with new material, making them Evolving Credits. In an Action Series, it is traditional for the sequence to end with a Power Walk (This usage is sometimes called a "Hero Shot").