When did this happen ?

While Growing up I always remember it was "Looney Toons" but now I searched online and it shows no proof of it ever being Looney tunes but "Looney Tunes" instead, which I refuse to believe.

Am I the only one who thinks it was always Looney Toons ?

Is it some kind of Mandella effect or some similar realies merging into one or some other reality shift due to unknown reasons ?

What is it ?