The Comeback is a television series produced by HBO that stars actress Lisa Kudrow as sitcom actress Valerie Cherish in modern-day Los Angeles, California. It was created by Kudrow and Michael Patrick King, a former executive producer of Sex and the City. Kudrow and King were also screenwriters and executive producers of the series, with King also serving as the director of some episodes.The show, a comedy, was shot by a single camera, in the style of reality television. Viewers of The Comeback are actually watching raw footage shot for the fictional reality show within The Comeback, also called The Comeback.

Source: Wikipedia.org