Page "Title sequence" Paragraph 18

Although a title sequence may be modified during a series to update cast changes or incorporate new " highlight " shots from later episodes, it will tend to remain largely the same for an entire season.

Such is the strength of a title sequence in expressing the concept of a show, it will sometimes be the key element a producer will target in order to revamp a show between seasons.

Therefore some shows have enjoyed several quite different title sequences and theme music throughout their runs, while in contrast some ever-popular shows have retained their original title sequences for decades with only minor alterations.

Conversely, retaining a series ' original title sequence can allow a producer to change many key elements within a programme itself, without losing the show's on-screen identity.

Other variations include changing only the theme music whilst keeping the visuals or vice versa.