Queen "Radio Ga Ga" was published in the year 1984, the era where videos were preferred more than radio, the song tells us that after so many years of only listening to the radio now that we have got the convenience of watching the video instead of only song, the writer remembers how he and everyone enjoyed listening to the radio. He portrays his feelings towards the radio with this song and tells it that there is still someone that love radio.
He even prays that the radio would never perish out of the world, the writer then criticizes the video, and you still be there because they will all come to you when everyone is going to get tired off these videos. The writer when saying.
"Radio Gaga.
Radio goo.
Radio blah"
He means that he hears every nonsense that how old is the radio and no one watches it but still he love it.
The irony in this song was that this song was a video song.
He also says to the radio to not become a backdrop for the next generation, you had the time when people used you but still there is still your finest hour to come, you showed them all types of shows like "Wars of Worlds", you made the audience laugh, cry and made them feel that they flew in sky high.