The Sarah Jane Adventures/Heartwarming

• The Tag of "The Wedding of Sarah Jane Smith", one of the last filmed appearances of David Tennant as The Doctor:

The Doctor: Don't forget me, Sarah Jane. Sarah Jane Smith: No one's ever going to forget you.

• • The look on Sarah Jane's face as Peter renounces his agreement with The Trickster is both this and a Tear Jerker.
• Seeing the Brigadier in "Enemy of the Bane" after so many years.
• Any time Luke and Sarah Jane are reunited. Hell, just the entirety of Luke and Sarah Jane's relationship, period.
• The moment in Death of the Doctor when you can almost see Russell T Davies think "to hell with it" as he dives into the Continuity Porn:

Sarah Jane Smith: There’s a woman called Tegan in Australia, fighting for Aboriginal rights. There’s Ben and Polly, in India, running an orphanage there. There was Harry... oh, I loved Harry. He was a doctor, he did such good work with vaccines. He saved thousands of lives. There was a Dorothy something. She runs that company, A Charitable Earth. She’s raised billions. And this couple in Cambridge. Both professors. Ian and Barbara Chesterton. Rumour has it, they’ve never aged. Not since the sixties. I wonder... echoes of the Doctor, all over the world. With friends like us, he’s never going to die, is he?

• Maria's last scene with Sarah Jane when Sarah Jane says that she is like a daughter to her.
  • Sarah Jane eventually gets a real daughter when she adopts Sky in series 5.
• Clyde's interactions with the homeless girl Ellie in "The Curse of Clyde Langer" fall somewhere between heartwarming and Tear Jerker.
  • Clyde's first, but brief, meeting with her - Note that this is before he is cursed - he gives her some money for a bacon sandwich because, in his eyes, being a "Scrounger" might not be her fault.