The Philistines were, according to Barbara Wright, an "old Earth" tribe. (AUDIO: The Unwinding World)
The term was also used as an insult.
The Fourth Doctor told Romana II "don't be such a philistine" after she asked why he keeps a donkey's mandible in the TARDIS. (TV: The Creature from the Pit)
The Master observed that Sabalom Glitz was the "archetypal philistine". (TV: The Ultimate Foe)
Antoinette Bisby accused the corrupt judges of the Young Artist of the Year award of being philistines. (PROSE: Framed)
The Clocksmith said that the Eighth Doctor and his friends were philistines, unable to appreciate good art. (AUDIO: The Doomsday Chronometer)
Jim told Ambrose that he was a philistine when he showed no interest in listening to The Ballad of the Grey Mare. (AUDIO: The Grey Mare)