Sonic Sitcom ran for 4 seasons with 75 episodes when it premired on November 4th, 2010. They are as listed.
EPISODE 1: "Dinner Disasters/101 Mobians"
Dinner Disasters: Sonic tries to get food for Amy to cook dinner, leading to disasterous results. He also meets Gills the Fish.
101 Mobians: Sonic's pet dog Muttski starts having puppies when
he meets another dog, making it hard for the gang to take care of the
Guest Stars: Scott Menville as Gills the Fish. Frank Welker as Muttski.
Notes: "101 Mobians" is a parody of "101 Dalmatians"
EPISODE 2: "Throwing Up/Afternoon of the Living Waves"
Throwing Up: Tails starts getting sick and throws up all over the couch.
Afternoon of the Living Waves: Sonic gets swimming lessons from
his friend Gills the Fish, but magic waves made Sonic constantly drown.
Guest Stars: Jim Cummings as Dr. Bear. Scott Menville as Gills the Fish.
Notes: "Night of the Living Waves" is a play on the horror film "Night of the Living Dead"
EPISODE 3: "Charlie and Company/How to Train your Honey Bee"
Charlie and Company: An orphaned rat named Charlie needs a home and the gang let him in.
How to Train your Honey Bee: Charmy thinks he isn't smart and
decides to take classes from Professor Omelet, who is Dr. Eggman in
disguise because he wants him to become his entertainer. So it's up to
Sonic to save him.
Guest Stars: Townsend Coleman as Charlie the Rat.
Notes: The episode is a play on the movies "Oliver and Company" and "How to Train your Dragon"
EPISODE 4: "The Armadillo's Return/Sonic Who?"
The Armadillo's Return: Mighty returns to the Chaotix Detective Agency after he left on his long adventure.
Sonic Who?: While Sonic was exploring Mobius, he was captured by
pig nuns believing Sonic to be the Chosen One who will defeat the
demonic overlord Robotnik, causing identity crisis between his friends and the nuns.
Guest Stars: Angela Lansbury as Mother Aerith.
Notes: Mighty becomes a regular character voiced by Tom Kenny.
EPISODE 5: "A Very Speedy Christmas Part 1/A Very Speedy Christmas Part 2"
Part 1: Sonic is in charge of getting rid of the ice in the lake
so he wishes for Santa to bring him something that will do it faster.
Meanwhile, the girls set up a mistletoe which annoys the boys.
Part 2: Charmy tries to get a good Christmas tree on Christmas
Eve but the next morning, he learns the true meaning of Christmas:
getting together with family and friends.
Guest Stars: Jim Cummings as Santa Claus. Scott Menville as Gills
the Fish. Charlie Schlatter as Harry Rabbit. Townsend Coleman as
Charlie the Rat.
Notes: Part 2 is based off of "A Charlie Brown Christmas" Charmy even claims that he killed the tree when he put up the star.
EPISODE 6: "Hedgehog Family Circus/Lord of the Chilli Dogs"
Hedgehog Family Circus: Sonic's siblings Sonia and Manic come to the Hedgehog House to stay after they discorver that there was no one to battle.
Lord of the Chilli Dogs: A new city opened far from the house
kicks off the populating with a chilli dog stand---where the chilli dogs
cost 50,000 dollars! Sonic is detiremend to get one no matter how much
Guest Stars: Mae Whitman as Sonia. Cam Clarke as Manic. Kevin Michael Richardson as Chilli Dog guy.
EPISODE 7: "New Year Hedgehog, Part 1/New Year Hedgehog, Part 2"
Part 1: Sonic and the gang get ready for New Years Eve. Cream wants to join in the fun but she is too young.
Part 2: Uncle Chcuk tells Cream that no matter how old you are,
you'll always have fun. New Years strikes and the gang celebrate.
Guest Stars: Scott Menville as Gills the Fish. Townsend Coleman
as Charlie the Rat. Charlie Schlatter as Harry Rabbit. Mae Whitman as
Sonia. Cam Clarke as Manic.