CBS (9-11 p.m. ET)
Based on the famed Agatha Christie suspense thriller, this drama about a London murder trial ends with a walloping whodunit surprise. Sir Ralph Richardson plays an ailing barrister trying to defend his client (Beau Bridges) while coping with Bridges’ hostile wife (Diana Rigg) and his feisty nurse (Deborah Kerr).
SUNDAY, DECEMBER 5