air·time 
/ˈeɚˌtaɪm/ noun
/ˈeɚˌtaɪm/ noun [noncount] : time during a radio or television broadcast : time when something is on the air
▪ The committee plans to buy radio/TV airtime for the campaign ads. ▪ The replay got a lot of airtime. [=the replay was broadcast frequently]
▪ The committee plans to buy radio/TV airtime for the campaign ads. ▪ The replay got a lot of airtime. [=the replay was broadcast frequently]
