RTE viewers were full of praise for Philly McMahon after he appeared on Friday's Late Late Show to discuss Gaelic in the Joy.
The Dublin GAA legend teamed up with popular comedian Rory O'Connor as they brought Gaelic football into Mountjoy Prison.
And the documentary will air this Wednesday on RTE One at 9.35 pm in the first instalment of the three-part series.
READ MORE - Inside Philly McMahon's personal life with wife as he appears on Late Late Show
Both O'Connor and McMahon appeared on Friday's Late Late Show and the eight-time All-Ireland winner discussed his connections with the Dublin prison.
Speaking to Ryan Tubridy he said: "Unfortunately my brother John fell into that pathway and along that journey, particularly when you are struggling with addiction, you generally start off at a certain age able to work and be functional.
"My brother John was functional in terms of his addiction and was able to pay for his habit, which at that time you were probably looking at 20 to 30 thousand euro a year.
"At a point, his employer figured out what was going on and he was probably stealing from the home. The family had to evict him from the home because you're essentially feeding his habit and ends up on the streets.
"He ends up committing crimes to feed his habit and was actually in Mountjoy as well. I see in a lot of people in my programme and a lot of people in this programme I see my brother.
"For me, it's where I can roll up my sleeves and make a difference to people who have made mistakes. I would have loved my brother to have had that support.
"You're never going to completely change somebody, there is a journey along with it and it's very complex and I'm just very lucky to be given the chance to be able to do it."
And viewers were full of praise for McMahon after his appearance.
One RTE viewer said: "@PhillyMcMahon is such a lovely fella. So down to earth to and an absolute gent. Delighted to see him on."
While another said: "@PhillyMcMahon is such a lovely fella. So down to earth to and an absolute gent. Delighted to see him on."
While another added: "@PhillyMcMahon yet again putting your shoulder to the wheel. Brilliant interview, looking forward to the documentary."
READ NEXT:
- Seamus Coleman injury latest as Sean Dyche drops hints over Everton star's future.
Paul Flynn responds to Donal Og Cusack's Tailteann Cup comments
John O'Shea leaves Stoke job to focus on Republic of Ireland role
Rory Gallagher domestic abuse claims not pursued in courts 'due to lack of evidence'
Shane Dowling column: Credit to Clare - the Banner is clearly rising
Get the latest sports headlines straight to your inbox by signing up for free email alerts
