The two-parter The Empty Child & The Doctor Dances.
The tenth Doctor has a call back for the line in The Poison Sky.
The Empty Child and The Doctor Dances
"Beach Party Mummy"
Zero. Stewie never says 'Mummy'. He comes closest with 'Mum' and 'Mommy' but never says 'Mummy'.
Night at the Lazerama
YES; he marries her in an alternate time line that then reverts making the marriage null and void in the episode "The Wedding of River Song".
The only Classic Doctor Who episode in which the Doctor had no companion is 'The Deadly Assassin'
season 3 wizards vs warewolves
The Doctor's Daughter was first, it is episode six of series four, Silence in the Library is episode eight.
According to a survey of Doctor Who fans the most popular Doctor Who episode was The End Of Time.
The weeping angels appeared in the doctor who episode Blink episode 10 of series 3 doctor who
"Blink". It is my FAVORITE Doctor Who episode and it's REALLY freaky.
The Master (not the Doctor) sings I can't Decide in the episode The Last of the Time Lords (series 3 episode 13).