Meanwhile, from 1963, Robertson composed dozens of film soundtrack scores, usually under the name of Harry Robinson, and he also worked often in television. As arranger, songwriter, but mainly as composer, his credits include Light Up The Sky! (1960), Don’t Bother To Knock (1961), Live Now, Pay Later (1962), It’s Trad, Dad! (1962, US title: Ring-A-Ding Rhythm), the Crane series (1963), the Shindig! series (1964), Operation Third Form (1966), Headline Hunters (1967), Journey To Midnight (1968), Journey To The Unknown (1968), The Oblong Box (1969), Arthur! Arthur! (1969), Can Hieronymus Merkin Ever Forget Mercy Humppe And Find True Happiness? (1969), The Vampire Lovers (1970), Fright (1971), Dr. Jekyll And Sister Hyde (1971), The Best Pair Of Legs In The Business (1972), The House In Nightmare Park (1973), The Boy With Two Heads (1974), Hijack (1975), The Ghoul (1975), Legend Of The Werewolf (1975), Sky Pirates (1977), Glitterball (1977), A Hitch In Time (1978), Why Not Stay For Breakfast? (1979), There Goes The Bride (1980), Hawk The Slayer (1980), Breakout (1983), Prisoners Of The Lost Universe (1983), Specials (1991), and Virtual Murder (1992).