Sanford and Son - Season 6 Episode 17
A Matter of Silence

The Sanford residence is in chaos and it is all due to Freds sudden loss of hearing. Lamont is convinced Fred has a problem, but Fred denies it but Lamont takes him to a doctor just the same. However, after the doctor removes the wax build up, Fred decides to stay "deaf" just a little bit longer in an attempt to hold Donnas attention.