13. Arnold's Halloween -

Tired of Grandpa Phil's dismissive attitude toward kids' pranks, Arnold and Gerald set up a "UFO Tonight" broadcast from the boarding house basement, complete with amateur sound effects.

The prank becomes too real when Doug Cain, a gullible local reporter, overhears the broadcast and reports it on the evening news. 13. Arnold's Halloween

Grandpa Phil’s "Halloween is serious business" speech and the boarding house residents’ commitment to scaring "the living daylights" out of people. Tired of Grandpa Phil's dismissive attitude toward kids'