The changes can be so drastic that little - if any - evidence of the TV show or movie's true origin remains.

While there are several theories, the actual origin of the term remains uncertain.

These recordings were not listed in the credits, so the origins of some remain obscure today.

The origin of the surname Falconer, however, remains in dispute.

One month after the crash, even the origin of the violence remains in dispute.

The origin of the short street's nickname remains in question.

Though there is some knowledge of its development, its actual origins, the place and date where it was first played, remain a mystery.

The true origin of the name 'Manchu' remains under dispute.

However the exact origins of the family still remain to be elucidated.

Still, its origins and mission remain in the spiritual foundation of the church.