During 1964/65 Livermore starred as the Wicked Witch of the West in the "Wizard of Oz" at the Sydney Tivoli, and then played the lead role in "The Knack" for the Phillip Theatre management. He then became the first guest of the newly formed South Australia Theatre Company performing "Andorra" by Max Frisch and "West of the Black Stump" which he wrote with Sandra McKenzie. This was followed by the popular, "A Cup Of Tea, A Bex and A Good Lie Down" another Sydney Phillip Theatre show featuring Gloria Dawn and Ruth Cracknell. After fifteen months in this show, Livermore was invited to compere a children's program for ABCTV called "CrackerJack". On the strength of his success the ABC offered Reg his own Saturday night Variety show called "I'm Alright Now". Next year he took over from Ronnie Fraser in the "Mavis Bramston Show", and when Mavis finished in 1968 stayed on at Channel 7 to participate in "Anything Goes".