Motorcycle Mayhem: A 1957 Harley-Davidson Sportster roars into the shop. Plus, Rick takes a look at a painting of Vietnamese Communist leader Ho Chi Minh. (S16, ep 15)

Bo Knows: The shop doors open on an etching by Pablo Picasso and a bat signed by legendary athlete Bo Jackson. Plus, Chum surprises the others by joining a book club. (S15, ep 17)

Spacing Out: A Space 2005 wristwatch radio rockets into the shop. Plus, can Rick steer negotiations over a rare 1964 VW Karmann Ghia in his favour? (S14, ep 14)

Choo Choo Chum: The guys check out a Marlin rifle and a model train. They also scrutinise the autograph of reclusive millionaire Howard Hughes. But how much is it worth? (S13, ep 17)

Huddle Up: The team stumble on a souvenir of the Miami Dolphins' inaugural year and hear from a woman who claims she has unseen footage of President Frank D Roosevelt. (S8, ep 15)

Patriot Games: The guys come across a Bullitt movie poster signed by Steve McQueen. They also attempt to decipher illegible secrets locked in a Civil War diary. (S7, ep 15)

Broadsiding Lincoln: The guys come across one of the most sought-after items in US history: a wanted poster for the stage actor who assassinated Abraham Lincoln in 1865. (S6, ep 15)

Spidey Cents: The Pawn Stars cast their expert eyes over a piece of the Apollo 13 rocket, a classic 1973 Husqvarna Enduro motorcycle and some original artwork from a Spider-Man comic.

Like A Rolling Chum: The guys get the chance to buy a hockey stick signed by the legendary US 1980s Olympic champion ice hockey team, and an original 1970 Bob Dylan vinyl.

First Lady of Pawn: Rick grapples over a decision when a WWE Hall of Fame ring hits the store. (S17, ep 14)