Hard of herring

Darn fool kids!
Why, back in my day, PTEN came on the TV and it meant that an episode of "Babylon 5" was about to start!
PTEN wasn't used to try to blow up some of them there newfangled ae-ro-planes! No sireee Bob!
Of course, sometimes PTEN meant that an episode of "Kung Fu: The Legend Continues" was about to start.
That was not so good. But it was a damn sight better than "Time Trax"!

What? What you say sonny? It's PETN, not PTEN? PETN is the explosive?
Oh. Urrrrrrrrrrrrrrr...

Never miiiiiiiiiiiiind!