 With his own musical theatre company Essgee Entertainment, Gallaher produced and acted in stage productions of "The Pirates of Penzance", "H.M.S.Pinafore", "The Mikado", "The Merry Widow" and "A Funny Thing Happened on the Way to the Forum", among others.For most of the 1980s his song "Australia Be Proud" was heard at the conclusion of each broadcast day on television station CTC Canberra, accompanied by a montage of video clips from across Australia.