5. John and Abigail Adams

An engrossing portrait of the second U.S. president and first lady, costars Simon Russell Beale and Linda Emond. Included: the friendship (and enmity) between John Adams and Thomas Jefferson (James Barbour), who both died on the 50th anniversary of the signing of the Declaration of Independence; the Adamses' “great love story”; their bouts with depression; his troubled presidency. Interspersed are comments from historians.