'John & Joe Bishop: Life After Deaf': What is the comedian's son's condition? When is the documentary on TV?

Comedian John Bishop gives a glimpse into his son's life-changing health condition in emotional documentary John & Joe Bishop: Life After Deaf.

Find out what Joe Bishop's hearing loss condition is, and what the documentary will tell you about their lives.

When is John & Joe Bishop: Life After Deaf on TV?

The documentary is set to air on ITV tonight (Thursday) at 9pm.

It will also be available to watch on ITV Hub.

What is the condition that Joe Bishop has?

John's eldest son Joe, 27, has an autoimmune condition that causes progressive hearing loss and will eventually lead to deafness.

He contracted a virus when he was 15 that destroyed most of his hearing, and has been continuing to make it worse over time.

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Joe and the Bishop family, which also includes his wife Melanie and two other sons Daniel and Luke, have been learning British Sign Language (BSL) to enable them to communicate.

What happens in documentary John & Joe Bishop: Life After Deaf?

After years of trying to "fix" Joe's hearing, the Bishop family has taken a different view on his condition and decided they need to find out more about the deaf community, instead.

This emotional and moving documentary follows John and Joe as they get to grips with life as a part of the deaf community and the new language they need to master.

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Comedian John has set himself the challenge of being able to perform a full stand-up show in BSL, for a deaf audience and alongside established deaf comedians.

It's a huge undertaking and very daunting for him, but will be a big step towards helping Joe to adjust to life as a deaf person.

The documentary will also air with a BSL translation and adverts for it have aired with a BSL signer and subtitles.

John & Joe Bishop: Life After Deaf airs on Thursday at 9pm on ITV.