Powers Boothe on the "Guyana Tragedy"

This weekend, AMC begins showing the final episodes of its acclaimed drama series, and launches a new one: Low Winter Sun. Meanwhile, HBO presents its newest made-for-TV movie — this one a comedy, starring and co-written by Larry David.

HBO's new TV special is part biography, part music-appreciation lesson and part performance piece. Critic David Bianculli says it's a superbly compiled work, overseen by two of the people most intimately familiar with the composer himself.

A new made-for-TV movie from BBC America dramatizes one particular period in the intertwined lives of Elizabeth Taylor and Richard Burton. Critic David Bianculli says less is more, and the film's narrow biographic focus is one of its strengths.