Many thanks to SRAA contributor, Richard Collings, who notes:

Surprises galore for host Tom Meijer on his 42nd birthday: includes Tom being caught out by the technical team who play a recording of him trying to sing the classic Perry Como song 'It's impossible' as a send-up. Also birthday wishes in song from several members of the foreign language teams at Radio Nederland (as it was then known) in 1980.This recording was made on Sunday 16th November 1980 from 0930 to 1020 GMT. Recorded off-air on 9,895Khz in Plymouth, Devon, UK. Tom Meyer also makes reference to the date being the 52nd anniversary of the 'Happy Station Show'.