This episode tells the secret origins of Bakaar's invasion of Baghdad and how the Arabian Knights came into being.
September 7, 1968
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https://www.youtube.com/watch?v=ilcRUhHpw8M
Vangore captures Queen Shaheera and her son Ahmed to lure the Arabian Knights into a trap. Raseem and Bez quietly dispose of the guards to free the others and drive Vangore and his forces away from the palace.
October 26, 1968
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https://www.youtube.com/watch?v=PZQRRxu2Vsc
With Vangore out to kidnap Princess Tasmin, Nida takes her place, getting herself and Zazuum captured. They both escape and with the rest of the Arabian Knights, fight off Bakaar's guards and briefly take Bakaar prisoner.
December 28, 1968
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https://www.youtube.com/watch?v=QqvmI6VTxQA
Arabian Knights - E03 - A Trap For Turhan
Original Air Date: September 28, 1968
Vangore tricks Raseem and captures him to set a trap to lure Prince Turhan and his friends to rescue Raseem and fall into Bakaar's evil scheme: a public execution of the Arabian Knights as enemies of the state.
Arabian Knights is an animated segment of The Banana Splits Adventure Hour, created by Hanna-Barbera Productions. The series is based on the Arabian Nights, a classic work of Middle Eastern literature. The cast includes Henry Corden, Paul Frees, Frank Gerstle, Shari Lewis, Jay North and John Stephenson
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https://www.youtube.com/watch?v=Dw_FyRO733Q
Micro Ventures E02 - The Dangerous Desert
Original Air Date: November 23, 1968
Professor Carter, Mike and Jill change to micro-size by the wreckage of a rocket in order to locate a minuscule microchip, but a Gila monster stands in their way.
Micro Ventures is a live-action/animated series created by Hanna-Barbera Productions which originally aired as a four-minute segment on The Banana Splits Adventure Hour.[1] It ran for only four episodes from November 9, 1968 to December 21, 1968 on NBC and featured actors superimposed with animated microorganisms.
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https://www.youtube.com/watch?v=e-zMKKBsKQw
Vangore has ransacked Joowar and stolen its magical jewels. Turhan and Raseem are caught trying to retrieve the jewels, but the other Arabian Knights release them and proceed to fight off Vangore.
December 14, 1968
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https://www.youtube.com/watch?v=4Od0WhhuGoo
At the start of the third season, Rick Marshall (played by Spencer Milligan) is explained to have been accidentally returned to Earth alone, leaving his children behind. Rick is immediately replaced by his brother Jack. Rick Marshall abruptly disappeared while trying to use one of the pylons to get home; Jack stumbled upon his niece and nephew after he embarked on a search of his own to find them.
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https://www.youtube.com/watch?v=_w987hdHVUk