Heroes, villains, legends. Twenty years ago Billy and his Grandad were all of these and more, every Sunday afternoon before tea. Great Adventures is a magnificent, sweeping, suburban epic th... Read allHeroes, villains, legends. Twenty years ago Billy and his Grandad were all of these and more, every Sunday afternoon before tea. Great Adventures is a magnificent, sweeping, suburban epic that celebrates the power of imagination and the bond between generations.Heroes, villains, legends. Twenty years ago Billy and his Grandad were all of these and more, every Sunday afternoon before tea. Great Adventures is a magnificent, sweeping, suburban epic that celebrates the power of imagination and the bond between generations.