Anyone who was fortunate to see Brendan Gleeson and his sons in Enda Walsh's 'The Walworth Farce' in Dublin's Olympia Theatre six years ago will know how adept they are at physical comedy. The trio are back together in the final episode of Channel 4 and Amazon Prime's 'Frank of Ireland' - a sitcom vehicle created by his sons Brian and Domhnall Gleeson for themselves. Both have made their mark in TV shows like 'Love/Hate,' 'Peaky Blinders' and 'Run,' while Domhnall in particular has enjoyed huge success in movies like 'Brooklyn' , 'Ex Machina,' 'The Revenant' and the recent 'Star Wars' trilogy. So why is this series so earth shatteringly disappointing? Brian Gleeson plays Frank, a feckless 32 year old man child who lives at home in North Co Dublin with his mum, Pom Boyd's maneating Mary. Frank fancies himself as a musician and a songwriter. The problem is the songs he writes are pretty rubbish