Back To Four Square: The crew work at full throttle to fix a rare British 1950s Ariel Square-Four motorcycle. Ron challenges his protege Leonard to a big rig contest. (S7, ep 2)

Thin Tin Tin: Grammy Award-winning artist Jason Mraz gives Rick a tall order when he asks him to restore a special sign to honour the memory of his late grandfather. (S5, ep 19)

Harrison's Vendorlator: Rick Harrison stops with a one-of-a kind Pepsi dispenser. Plus, the workshop feels the pressure when it is hired to restore a very important sign. (S4, ep 21)

Tractors & Trucks: Rick and the team salvage a 1954 Bantam tractor. Later, they are put to the ultimate test when they agree to fix up a puzzling air brake tester for trains. (S3, ep 14)

Star Wreck: The team hatch a genius plan to turn a classic gas pump into a brilliant beer cooler. They also lend a new lease of life to a 1970s fast-food restaurant sign. (S5, ep 18)

Call The Count: Rick rises to the tough challenge of restoring a classic guitar in time for Brettly's birthday. A rare Pak Trak hunting scooter also arrives at the shop. (S4, ep 20)

Cold War Cruisin': Rick and his crew take on a big job when a 1962 Czechoslovakia scooter zooms into the shop. They also find a mini 1930s oil tanker in dire need of repair. (S3, ep 13)

Gone To Pieces: The search is on for rare parts when Big Mike brings in a 1964 Ducati motorcycle. Rick also gets charged with restoring a 1960s arcade game. (S5, ep 17)

Nut Job: A client's expectations prove sky-high when he coughs up $10,000 to restore a peanut roaster. Ron buys a vintage English taxi. But will it be worth the investment? (S4, ep 19)

Suds And Duds: The crew takes on a dirt road restoration when a 1967 Honda Scrambler motorcycle rolls into the shop. Plus, Tyler and Rick work to restore a TWA flight sign. (S3, ep 12)