Here's my idea for a SUPER ORIGINAL STORY that is DEFINITELY original and not copied from a famous sci fi series at all!
There's a dog simply known as The Dog. Whenever The Dog gets too old/hurt, they turn into a different breed of dog (the Second dog was a French bulldog, the Third Dog was a poodle, and the Thirteenth dog was a Golden Retriever). The Dog flies around the universe in a spaceship called the K.E.N.N.E.L (idk what the acronym stands for), with several dogs from Earth as their companion (Including Susan Forepup, Jamie McScottie, Chihuahua- Jane Smith, Ace McSaluki, Poodle Song, Terrier Oswald, Graham o'Barking, Rose Tail-er and Mutt-ha Jones. )
The Dog is not from Earth- they are a timehound with 2 tails, from the planet Colliefrey! The Dog saves the day from the evil Cybercats and Vacuum Cleanleks by using the sonic chewtoy, and they're always super smart!
They also have a pet human called Kane Nine.