VIDEOS:
K-9
K9's dated look is lampshaded by Rose as "disco" (note that the character was introduced in 1977). The Doctor finds this very offensive.
Example of:
Zeerust Canon
School Reunion
Example of:
Screams Like a Little Girl
K-9
Example of:
Badass Adorable
School Reunion
Example of:
Continuity Cavalcade