rosko moved to the uk in 1968 and from 1970 presented radio 1's "friday roundtable" where new records were reviewed by a panel of guests. he also presented in a saturday lunchtime slot. together with fellow radio 1 dj dave lee travis, he launched the first mobile discothèque, the "rosko international roadshow". he stayed with radio 1 until september 1976, when he left for america to re-join his father, who was suffering from parkinson's disease. around 1975, he briefly hosted "crackerjack" on bbc television with little & large. during that year, he also presented a few editions of "top of the pops", including the edition broadcast on 10 april.