I was diagnosed with stage 2 pancreatic cancer last year.
The "Jeopardy!" host said he struggles with feeling like he's a "terrible burden" on his wife of 30 years.
The Supreme Court justice began the treatment in May, in response to a recurrence of cancer.
The longtime "Jeopardy!" host said his treatment was paying off, and he looked forward to returning to the studio.
"I was 36, a nonsmoker, an obnoxious consumer of organic green peppers ... but there it was: a tumor the size of a small city wedged smugly in my left bronchus."
"I’ll step out again, even if this time ends up being the last time."
"Tell me how to grieve when we're not permitted to have a funeral... when the precious body of my child disappeared into the back of a funeral home minivan, never to be seen again."
After the too-cute interruption, the four-time Grammy winner shared that his family still has "good days and bad days."
In a rare on-camera interview with "Good Morning America," the "Top Gun: Maverick" star also recalled his on-set reunion with Tom Cruise.
Many cancer patients have had surgeries delayed and treatment procedures changed as the country battles COVID-19.