But don't expect a three-part series any time soon.

This being the first chapter in a three-part series, many questions are not resolved over the 2-3 hours needed to complete the episode.

The three-part series was broadcast on consecutive nights from 22 to 24 December 2008.

This album is the third of a three-part series.

A three-part series looking and the benefits and drawbacks of the nuclear power industry.

The three-part series, which took nearly two years to research, was prepared with the assistance of more than a dozen journalists.

Second in a three-part series devoted to the composer.

These were followed up with a three-part series on using and understanding Twitter.

Last night's documentary, the first in a three-part series, was a wonderful showcase for his talents.

The article, the first in a three-part series, illuminates a subject dark too long.