What are some of the most touching moments in Doctor Who history?

Doctor Who is a British science fiction television series that has been on the air since 1963. Throughout its long history, the show has had many emotional moments that have touched the hearts of fans around the world. Here are some of the most touching moments in Doctor Who history:

• The Doctor's Goodbye to Rose Tyler - In the episode 'Doomsday', the Doctor is forced to say goodbye to his companion Rose Tyler as she is trapped in a parallel universe. This emotional scene is a fan favorite and has been voted the most emotional moment in Doctor Who history.
• The Eleventh Doctor's Regeneration - In 'The Time of the Doctor', the Eleventh Doctor regenerates into the Twelfth Doctor. This scene is particularly touching because of the Doctor's final words to his companion Clara, and the appearance of the previous Doctors to give him strength.
• The Doctor's Farewell to Amy Pond - In the episode 'The Angels Take Manhattan', the Doctor is forced to say goodbye to his companion Amy Pond as she is sent back in time and can never return. The scene is especially poignant because the Doctor is powerless to change what has happened.
• The Doctor's Reunion with Sarah Jane Smith - In the episode 'School Reunion', the Doctor is reunited with his former companion Sarah Jane Smith. The emotional scene is a tribute to the classic era of Doctor Who, and it is especially touching because of the chemistry between the actors.