Malcolm in the Middle (2000)

S6E20 Stilts

Lois and Hal are confronted with their strict budget, prompting Hal to find out that one of his sons has been calling a 900 number. When he tries to clarify the situation with the hotline's billing department, he accidentally leaves the phone off the hook, leading to a staggering $800 charge. Meanwhile, Reese starts working at a research clinic where he gets paid to take experimental pills, while a hesitant Malcolm ends up in an embarrassing position at the Lucky Aide, dressed as Uncle Sam on stilts.