Working couple initially rejected being televised? (2,3)
I believe the answer is:
on air
'being televised?' is the definition.
(on air means being broadcast)
'working couple initially rejected' is the wordplay.
'working' becomes 'on' (e.g. a machine is working or on).
'couple' becomes 'pair' (synonyms).
'initially rejected' means to remove the first letter.
'pair' with its first letter taken off is 'air'.
'on'+'air'='ON-AIR'
(Other definitions for on air that I've seen before include "Broadcasting at this moment" , "(Walking) elatedly" , "Broadcasting live" , "Live broadcast" , "now showing" .)