The basic premise of the show is Jabberjaw is the main character, Jabberjaw, is a cross bewtween Bruce, from the Steven Speilberg movie JAWS, and Curly Howard, from the Three Stooges who finds himself in a new adventure week after week. He's accompanied by a group of teenagers which form the rock group the Neptunes (an under-water Josie and the Pussie Cats knock-off, actually, this show borrowed heavily from other Hanna-Barbara cartoons which is apparent to anyone above the age of 4). They all live "under the sea" where they battle various villans who threaten their underwater world (I think Disney owes some rolaties to Jabberjaw for coming up with the concept for their Little Mermaid film) . This show was an underated cog in the framework of the USA Cartoon express (along with the likes of the cartoons "Scooby Doo", the "Smurfs", "Great Grape Ape" and other cult classics) but now, since cartoons bit the big one long ago, all we have left on USA if dreck like MONK. If you would like the Wikipedia blurb on Jabberjaw, please read on:

From Wikipedia, the free encyclopedia

Jabberjaw was a Hanna-Barbera cartoon series created in 1976, starring a fictional shark named Jabberjaw and his four young adult cohorts, who had various adventures in a futuristic underwater world. The quintet also performed regularly as a rock group called The Neptunes.

The Neptunes consisted of:

Jabberjaw (voiced by Frank Welker): The Neptunes' drummer. Jabberjaw was a great white shark whose voice sounded similar to Jerome "Curly" Howard of the Three Stooges. Jabberjaw found it hard to get respect in a society where "shark ejectors" (robots that would guard various buildings or cities against sharks being allowed to enter) were commonplace, prompting him to frequently utter his catchphrase (borrowed from 1970s comedian Rodney Dangerfield): "No respect!"

Biff (voiced by Tommy Cook): A brunette-haired young man, Biff was the band's guitar player and level-headed leader, similar to Scooby-Doo's Fred Jones.

Bubbles (voiced by Julie McWhirter): A blonde-haired young woman, Bubbles played piano for The Neptunes. She was extremely ditzy and dimwitted, similar to Josie and the Pussycats' Melody Valentine.

Clamhead (voiced by Barry Gordon): Played bass guitar for The Neptunes. Clamhead tended to be either somewhat nervous or fairly impressed by new things (his catchphrases were "abba-abba-abba!" and "wowee-wow-wow!"). Clamhead was Jabberjaw's best friend, and bore a strong resemblance to Scooby-Doo's Shaggy Rogers.

Shelly (voiced by Pat Paris): A brunette-haired woman, Shelly played tambourine for The Neptunes. Shelly's personality was very abrasive (similar to Josie and the Pussycats' Alexandra Cabot), and she held a great deal of contempt for Jabberjaw (or "ol' blubberhead" as she would call him).

Per a great deal of Hanna-Barbera's output in the 1970s, the format and writing for Jabberjaw was similar to that for Scooby-Doo or Josie and The Pussy Cats. The show also drew inspiration (in the use of a shark as a character) from the then-recent film Jaws. It also shared The Flintstones' penchant for making use of puns as the names of locations, people, etc., in this case, ocean-themed puns (such as "Aqualaska" instead of Alaska).

Sixteen 30-minute episodes of Jabberjaw were produced, which aired on ABC Saturday Morning from September 11, 1976 to September 3, 1977 and on Sunday Morning from September 11, 1977 to September 3, 1978. Repeats have turned up on The USA Network (on their Cartoon Express), Cartoon Network, and Boomerang.

In Brazil, Jabberjaw is known as Tutubarão, a play with the portuguese word "tubarão", which means "shark".

In the late 1990s, Jabberjaw was briefly engaged to budding filmmaker Madeline Austin-Kulat.

Jabberjaw himself later appeared on the series Yogi's Space Race with Buford as his partner.

He appeared later still in sporadic appearances on Cartoon Network's Harvey Birdman, Attorney at Law where the Neptunes were accused of stealing Shouyu Weanie's song. In this show, Frank Welker reprises his role of Jabberjaw and also voices Biff. Clamhead made another appearance in the episode "Identity Theft" where he was voiced by Steven Blum.

Jabberjaw also appeared on Cartoon Network in a music video set to Pain's Jabberjaw (Running Underwater), with Jabberjaw and The Neptunes portrayed as a ska band.