Complex sentence: He is a fluent Irish speaker and has made many appearances on the Irish-language TV channel TG4 Most recently he was a guest judge on TG4's Feirm Factor and a guest gardener for Season 2 of Garrai Glas in 2011.
Split into simpler sentences: He is a fluent Irish speaker and has made many appearances on the Irish-language TV channel TG4. He was a guest judge on TG4's Feirm Factor and a guest gardener for Season 2 of Garrai Glas in 2011.