Airs Sunday, May 20 at 7:00 PM - See how the American experience has been shaped by people who were in the New World long before the Mayflower.

Airs Sunday, May 20 at 8:00 PM - Watch as Moriarty poses the “final problem” and a tabloid reporter reveals the “shocking truth” about Sherlock.

Airs Sunday, May 20 at 9:30 PM - Rising roots rock kings the Avett Brothers perform songs from their latest album; Heartless Bastards follow.

Airs Monday, May 21 at 7:00 PM - An 1863 Ulysses S. Grant letter; a circa 1950 Charles Shulz Li’l Folks original cartoon; and two paintings — one by Victor Higgins, the other by Spencer — purchased together for $5, but valued considerably higher.

Airs Monday, May 21 at 8:00 PM - Enjoy a tribute to the songwriting team who penned such classics as “Raindrops Keep Fallin’ on My Head,” “What the World Needs Now Is Love” and “Walk on By.”