Sanford and Son (1972)

S6E25 School Daze

Donna feels ignored by Fred and starts digging into his recent behavior. To her surprise, she learns that Fred has been hiding a significant part of his life, even from Lamont. Initially, she suspects he’s involved with another woman, but the truth comes to light when they find out that Fred has been attending night school to get his GED. He never completed high school because he had to leave to help support his family.