Episode 78 of "Malcolm in the Middle"
s04e15 Garage Sale
Title: Garage Sale
Original Air Date: 04/06/2003 on Fox
Director: Levie Isaacks
Writer: Maggie Bandur
Guest Stars: Kirk Ward (FCC Officer), Richard Eck (Police Officer), Kathleen M. Darcy (Wife), Cody Arens (6-Year-Old Malcolm), Mildred Dumas (Elderly Lady), Connor Swanek (Toddler Reese), Jay Collette (8-Year-Old Reese)
Plot Outline:
A garage sale that's entrusted to Reese (yikes!) yields treasures near and dear, like Hal's old radio transmitter, which he makes operational. And a PC dating back to 1976 that Malcolm plans to sell to Craig for $1300.