Table:
text: United Kingdom in the Eurovision Song Contest
Commentators and spokespersons
Commentators and spokespersons
Years Final_television_commentator Radio_commentator Spokesperson Semi_final_television_commentator Semi_final_second_television_commentator
1974 David Vine Terry Wogan Colin-Ward Lewis No semi-finals No semi-finals
1975 Pete Murray Terry Wogan Ray Moore No semi-finals No semi-finals
1976 Michael Aspel Terry Wogan Ray Moore No semi-finals No semi-finals
1977 Pete Murray Terry Wogan Colin Berry No semi-finals No semi-finals
1978 Terry Wogan Ray Moore Colin Berry No semi-finals No semi-finals
1979 John Dunn Terry Wogan Colin Berry No semi-finals No semi-finals
1980 Terry Wogan Steve Jones Ray Moore No semi-finals No semi-finals
1981 Terry Wogan Ray Moore Colin Berry No semi-finals No semi-finals
1982 Terry Wogan Ray Moore Colin Berry No semi-finals No semi-finals
1983 Terry Wogan Ray Moore Colin Berry No semi-finals No semi-finals

Question: Who was the radio commentator when the last TV commentator was John Dunn among Britain in the Eurovision Song Contest?