Wings S03 E18 Take My Life, Please

"Look, up in the air. It's a bird! It's a plane! It's a high-flying comedy - where the laughs always arrive on schedule!"

Stuck behind a lunch counter and facing years of rejection as a musician, Helen takes a job placement exam. When the exam suggests she should pursue a career in music of food service, her friends decide to change the results—to law career or stand-up comedian. To their shock, she runs with comedian.