Acclaimed writer, actress, producer and funny lady Tracey Ullman has been a favorite of HBO viewers since her multiple Emmy-winning turn in "Tracey Takes On..." in the late 1990s. More than 15 years later, her return to the network to front "Tracey Ullman's Show" proves her sketch-comedy chops are as sharp as ever. Across six episodes, the British star pokes fun at her homeland by taking on the personas of celebrities like Dame Judi Dench, German chancellor Angela Merkel, Dame Maggie Smith, and Camilla, the Duchess of Cornwall, as well as portraying everyone from an ex-dictator's wife and an agent for fashion models to a drama teacher and an accident-prone massage therapist.