Absence of Crowds of People Under Alien Influence: Actually, this time we get a crowd of aliens under people influence. Way to ring the changes!
Tie-in with Doctor Who story: None, but "Joseph Serf" was one of Patrick McGoohan's pseudonyms when writing The Prisoner.
Rani's Mum is Annoying/Is Absent: The latter, and for once not even mentioned in an anecdote.
Luke Cameo: Clearly this was intended as the mid-season Luke episode.
Sky says something so daft that you have to wonder how she gets through life without being mercilessly bullied: No, but then she's got to compete with Luke apparently having always called Clyde and Rani "Clani," even though that's never appeared before in the series.
Sarah Jane Waxes Maudlin: She goes on about family so much I suspect she's planning a US presidential campaign.
Mobile Phone as Plot Device: Luke actually makes a joke about the sheer number of mobiles destroyed in the service of the plots of this series.
Racism Towards Aliens: Yes, but, in a nice twist, not from the regulars this time.
The Crimes of Sarah Jane: Breaking and entering, deception, theft, destruction of property.
Sonic Lipstick: Versus magic alien pen.
Wristwatch Scanner: Yeah.
One or More of Sarah's Companions Falling Under Alien Influence: No, but you've got a whole crowd of hypnotised journalists.
Sarah And/Or Companion Acts like a Selfish Cow: The way she and her kids lord it over Clyde and Rani over getting to go to the big exclusive Serfboard launch, I'm amazed they're still friends.
Wide-Eyed Speech About the Wonders of the Universe and How Great it Is to be in Sarah's Gang: Copied from the first episode for obvious reasons.