Doctor Who: The Parasite of Time:
The Doctor took in a deep breath from the moisture on the Ood Sphere, his grey hair being blown by the harsh wind of this snowy world. Only 2 regenerations ago did he save this world and it's inhabitants from the 2nd Great and Bountiful Human Empire, the Ood obviously developed a great respect and loyalty to the lone Time Lord, the Ood weren't the first nor the last who would become inspired by his heroic acts.
Only that he wasn't alone anymore, his TARDIS had a habit of upgrading itself, a fine model of Gallifreyan technology. His newest AI assistant code named "The Assistant" was a robot built by the TARDIS to look more like a person, although "it" (Or "He" as the assistant preferred to be called) was still adapting to his new master's ways, he still very much a valuable companion already as he had saved the Doctor from his many, many near-deaths.
"Going somewhere are you Doctor, sir?" The assistant asked in his robotic but human sounding voice to the Doctor, "Oh will you quit calling me sir?" the Doctor said frustrated, he already had enough telling him to stop calling him master as it reminded to much of his greatest foe and to be honest, he really needed a break.
"I apologise Doctor, I will upload into my database that I must refrain from calling you "sir" in the future. Although the assistant was a mere emotionless humanoid robot, he did have a concept of politeness and such. "Might I have the blessing of the Doctor telling me where we are travelling to?" the loyal servant pleaded with a hint of curiosity.
The Doctor sat up and walked up to the control panel and slammed a few buttons and pulled a lever, "We are going to a level 5 planet that is quite new to you, the inhabitants are quite more like you and I, only that they're a bit more dumb than us".
The Assistant raised an eyebrow at that quote, but nonetheless remained silent, "And what would that place be called Doctor?"
The Doctor looked at his assistant:
"Earth"