Joe Duffy praises Liveline callers as he prepares for his final show

RTE presenter Joe Duffy, who has announced his retirement after 37 years at the station (PA)

Joe Duffy has praised the callers as he prepares for his last episode of RTÉ's famous phone-in show on Friday afternoon.

The Ballyfermot broadcaster, 69, is retiring after 37 years at the station, where he has presented Liveline for 27 years.