In the lands of the North, where the black rocks stand guard against the cold sea, in the dark night that is very long the Men of the Northlands sit by their great log fires and they tell a tale... They tell a tale of Noggin the Nog, the king of a land that strongly echoes popular culture's depiction of viking culture. Noggin the Nog is a shining example of British childrens' television which originally aired in 1959, but whose legacy has lasted for decades.
Anti-Magic: Olaf has a jewel that apparently grants him immunity to the effects of magic.
Bungling Inventor: Olaf the Lofty, court inventor, whose inventions have mixed results; some work, some partly work and some do the opposite of what he wanted.
Chain of Deals: In one of the spin-off books, Olaf the Lofty invents money and uses it to buy something off Thor Nogson, who then spends a frustrating day in the (barter-based) marketplace trying to find somebody else who'll take the coins as payment. Eventually he meets a fisherman who sees the coins as weights for fishing lines and gives him a fish for them, allowing him to set up a chain of deals running back through all the people he's talked to and ending with him getting the thing he'd come to the market to buy in the first place.
Cool Chair: King Knut's chair of stone. Placed at the top of a very tall, steep hill, King Knut would walk up to it every dawn and sit there to watch the sunrise, and watch over his Kingdom.
Cool Sword: The closest Nogbad ever got to ruling the Northlands (not to mention the world) was when he obtained the Sorcerer's Sword in "Firecake". It was a longsword that gave the wielder control over all living beings in the world, except for the stone giants. It was useless as a melee weapon, as Prince Knut was able to shatter it into pieces on a rock like glass, making it more like a magic wand than a sword.
Nice Job Breaking It, Hero: Olaf's inventions have a habit of leading to this; both his failed shrinking potion and his recipe for firecake land in the hands of Nogbad the Bad, who uses them to create an army of huge crows and uncover the Sorceror's Sword respectively.
Non-Action Big Bad: Nogbad the Bad never fights (even when Thor Nogson challenges him) and usually has his crows do his dirty work; the latter is at least partly justified after he is forced to sign a contract with the dragons never to steal again.
Non-Fatal Explosions: Olaf's discovery of gunpowder (called "firecake") blows him through the castle wall, completely unharmed.
Olaf apparently has a habit of doing this; he quite happily blows himself through a wall whilst working on his fire machine.
Old Soldier: Thor Nogson, Captain of the King's Guard and Noggin's constant companion. He gets bored in times of peace and is eager to challenge Nogbad to a duel when the opportunity presents himself. He is less than eager when it comes to new experiences though, such as flying or fighting a dragon.
Our Dragons Are Different: Fire-breathing dragons are only mentioned, but a dragon that breathes ice and can only be in hot areas for a limited amount of time becomes an ally of Noggin.
Plot Triggering Death: The first episode involved the death of King Knut, which set off Prince Noggin's first quest; to find his bride and Queen.
Royals Who Actually Do Something: Noggin undertakes the various quests himself, usually with Thor Nogson and Graculus. In his spare time, he helps with the gardening.
Summon Bigger Fish: Faced with the pretender Emperor, Noggin summons the benevolent genie that he borrowed from Haroun. The Emperor summons his own genie, a much larger genie that can actually fight. Noggin uses his talisman to summon Groliffe, who happens to be the one type of dragon that can kill the black genie.
Tears from a Stone: In the episode "Firecake", the statues (revealed to be hibernating guardians of the Sorcerer's sword) can cry when faced with death/rejection.
Throwing Down the Gauntlet: In "The Omruds" Thor Nogson challenges Nogbad the Bad to single combat. Nogbad accepts but, being the Dirty Coward that he is, immediately uses a magic potion to triple his size. Thor Nogson tries again in "Firecake"; this time Nogbad refuses until he has unearthed the Sorcerer's Sword.